Chuong 2- DIS
description
Transcript of Chuong 2- DIS
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HEÄ THOÁNG TOÀN KHO XAÙCÑÒNH
(Deterministic Inventory ystems!
G"# T$ N%&ye'n H)& *$&+c
ÑH ,AÙCH KHOA - ÑH.G T*HC/0123043
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NOÄI D5NG He6 t$o7n% c8) 98n $:;n% co7 9<n$
/o= $>n$ ?8@n% 9:t $:;n% Bin$ te7 *$:=n tc$ 9o6 n$:@y mo= $>n$ Ñ8n $:;n% c$8; Gi:m %i:+ 9on% n$:7t Gi:m %i:+ %i: t:Fn% Gi:m %i:+ 9:c ie6t T:Fn% %i:+ ie7t tr8+c
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NOÄI D5NG He6 t$o7n% s:n &:7t $:;n% ?o:@t
8@n% s:n &:7t Bin$ te7 /o= $>n$ 98n $:;n% c$:6m .&ye7t 9<n$ m&: ?:;m 8@n% s:n &:7t Bin$ te7 n$ie& s:n J$:m *$8n% J$:+J t$8;i %i:n $e7t $:;n% *$8n% J$:+J t$8;i %i:n $e7t $:;n% Be7t $8@J
He6 t$o7n% B$o:n% 9:t $:;n% co7 9<n$ K$o:n% 9:t $:;n% Bin$ te7 K$o:n% 9:t $:;n% Bin$ te7 n$ie& s:n
J$:m
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GILÙI THIEÄ5 /o6t n%&ye=n n$:=n ton B$oM
m&:2s:n &:7t ?o= $:;n% Bin$ te7
(Economic lot size! C$n$ s:+c$ ton B$o to7i & :+c
9<n$ ?o= $:;n% Bin$ te7# T$:m so7 mo= $>n$M
N$& c:& (Demand) C$i J$ (Inventory cost) T$8;i %i:n c$8; (Lead time)
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GILÙI THIEÄ5 Gi: 9<n$
T$:m so7 :+c 9<n$ (Deterministic)
N$& c:& 9o6c ?:6J J$:=n o7 9e& ,ie7n ?ie=n t&@c#
C:+c $e6 t$o7n%M He6 t$o7n% v8+i c8) 98n $:;n% co7 9<n$ -
O He6 t$o7n% v8+i B$o:n% 98n $:;n% co7
9<n$ - OI He6 t$o7n% s:n &:7t t$eo ?o:@t - E*.
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HEÄ THOÁNG CLP ÑLN HAQNG COÁÑÒNH
(Fixed Order Size Systems! ":7n 9e c&: $e6 t$o7n% ton B$o
Ñ:t $:;n% :o n$ie=&R K$i n:;o 9:t $:;n%R
K$i ?8@n% ton B$o %i:m 9e7n %i:+ tr<:+c 9<n$S $e6 9:t $:;n% v8+i ?8@n%co7 9<n$#
He6 t$o7n% c8) 98n $:;n% co7 9<n$
He6 t$o7n% . (. ystem! C:+c t$:m so7M
Ñiem 9:t $:;n% , 8@n% 9:t $:;n% .
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/OU HVNH WLNG ÑAYT HAQNGKINH TEÁ
(Economic Order Quantity - EOQ! Gi: t$ie7t
N$& c:& B$o=n% 9oiS ?ie=n t&@c ie7t tr8+c# T$8;i %i:n c$8; B$o=n% 9oi v:; ie7t tr8+c#
To:;n o6 ?o= $:;n% n$:6J B$o c&;n% ?&+c K$o=n% $e7t $:;n% tron% B$o :n J$:m 98n v:; 9o6c ?:6J C$i J$ co7 9<n$ v:; ie7t tr8+c#
/o= $>n$ c@c tie& Ton% c$i J$ $:;n% n:FmM*M *$ m&: 98n v<
ZM N$& c:& $:;n% n:FmCM *$ 9:t $:;n% 98n v<H [ *M *$ ton tr) 98n v< $:;n% n:FmM T\ ?e6 J$ ton tr) tre=n J$ m&: $:;n% 98n v<
$:;n% n:Fm#
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/OU HVNH WLNG ÑAYT HAQNGKINH TEÁ
(Economic Order Quantity - EOQ!
t
Inv
,
.. M ?8@n% 98n $:;n%, M 9iem 9:t $:;n% M t$8;i %i:n c$8;
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/OU HVNH WLNG ÑAYT HAQNGKINH TEÁ
(Economic Order Quantity - EOQ! Ton% c$i J$ ton B$o $:;n% n:FmM J$
m&: $:;n%S J$ 9:t $:;n% v:; J$ ton
tr)#
N
RLB
*HQPR TC*
EOQPF2CR
H2CR Q
0Q
CR
2
H
dQ
dTC
2QCR PR TC
*
2
=
+=
===
⇒
=−=
++= HQ
.
H. 23
C
*Z
.]
CZ 2.
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/OU HVNH WLNG ÑAYT HAQNGKINH TEÁ
(Economic Order Quantity - EOQ!
" ̂ &@M Z [ _000 9v2nS * [ 40 929vSC [ `0 929$
H [ ̀ 929v#n T [ 3 t&:n
. [ .ZT ( 3]`0]_0002` ! [ a00
TC] [ 40 × _000 b ` × a00 [ _4300 9, [ _000 × 3 2 3 [ `01#1 9v
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*HAUN TdCH ÑOÄ NHA /OU HVNH
(EOQ Sensitivity ! An$ $8n% c&: s@ t$:y 9oi 2 s:i so7 ^)
Bie6n v:;o ?e=n n%o) r: mo= $>n$ He6 so7 s:i so7 (Error factors!M
ZS CS HM %i:+ tr< t$@c f ZgS CgS HgM %i:+ tr< 8+c?8@n%
:i so7 EO.
:i so7 C$i J$ T"C
Z2ZXZˆ= C2CXC
ˆ= H2HXHˆ=
1XXX
QQ-Q Q
H
R C*
*
−==∆
( )
Q
2
Q
HR C*
*
2X
1-X1XXX
TVC
TVC-TVC TVC =−==∆
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*HAUN TdCH ÑOÄ NHA /OU HVNH
(EOQ Sensitivity ! " ^&@M
XZ [ 4000 2 3000 [ 0# XH [ 40 2 30 [ 0#
XC [ 0 2 3 [ 3
Gi:+ tr< 8+c?8@n%
Gi:+ tr< t$@c
Z (9v! 4000 3000
H (9! 40 30
C (9! 0 3
3h#`j0#3h`j4j0#0#34jXXXkT"C
a4#a0#a4a4j0#
0#3 k.
HZC ⇒=××==
⇒=×
=
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ÑLN HAQNG CHLQ
(Bacorderin!! Ñ8n $:;n% c$8;M N$& c:& 98@c 9:+J +n%
tre'# Gi: s M Ñ8n $:;n% tre' 9:+J +n% 8i 98n
$:;n% Be7S m+c ton B$o %i:m l&: 9iem 0
M 8@n% $:;n% c$8; ?8+n n$:7tf K M *$ c$8; 9v# $:;n% n:Fm
t`
t3 t
4
t
I
.R
J t
R
J-Q t
3
2
=
=
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ÑLN HAQNG CHLQ
(Bacorderin!! Ton% c$i J$ ton B$o $:;n% n:FmM J$ m&:
$:;n%S J$ 9:t $:;n%S J$ ton tr) v:; J$c$8; $:;n%#
2QKJ
2QJ)-H(Q
QCR PR TC
22
+++= =∂∂=∂∂0JTC/
0QTC/
R J t
J- NRLB
KJPR TC
K)(HKQJ-Q
K)(HHQJ
K
K H
H
2CR Q
*
3ma
*
**
***
**
*
=
=
+=
+=+=
+=⇒
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ÑLN HAQNG CHLQ
(Bacorderin!! " ^&@ M Z [ _000 9v2nS * [ 40 929vS C [ `0 929$S
H [ ` 929v#nS [ 3tS K [ 4 929v#n
3!"t #0!0$%&'00000 t'00000*1'000*10TC
2"2-00-%2
2*'000 B
0013
'00*3 J
'001
13
3
'000*30*2 Q
3ma
*
*
*
===+=
==
=+
=
=+
=⇒
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GIA/ GIAÙ ÑOÀNG NHAÁT
( "ll - #nits Quantity Discount ! Gi:+ m&: 98n v<
Quantit $rea -%rice#+
P!!!!!!PP
+Q +,P
!!!!!!!!!!!
+Q +,P
+Q +,P
P
10
1
211
100
.
>>>
≤≤
≤≤
≤≤
=
+
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GIA/ GIAÙ ÑOÀNG NHAÁT
( "ll - #nits Quantity Discount ! K$i %i:+ m&: 98n v<
t$:y 9oiS 98;n%
con% c$i J$ ton%B$o=n% ?ie=n t&@c
/o'i %i:+ tr< *i co+mo6t EO. t8n%
+n% c$\ co+ %i:+tr< B$i n:m tron%B$o:n% ?8@n% 9oi%i:+ 5i t8n% +n%
C
.
54 53
GZ2.
*Z
*.23
TC
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GIA/ GIAÙ ÑOÀNG NHAÁT
( "ll - #nits Quantity Discount ! T$&:6t to:+n c@c tie& ton% c$i J$ TC ,:pt 9:& t; *0 S
tn$ c:+c EO. v8+i c:+c %i:+ tr< *i S 9e7n B$i 98@c 4 EO. %i:+ tr< "EO.
Tn$ TC "EO. 5i q "EO.#
C$o@n EO. v8+i TC c@c tie&#
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GIA/ GIAÙ ÑOÀNG NHAÁT
( "ll - #nits Quantity Discount !" ^&@M Z [ _000 9v2nS C [ `0 929$S [0#`
%00EOQ
$31%%2
%00*0!3*"
%00
'000*30 '000*"(%00)TC
'12002
00*0!3*10
00
'000*30 '000*10(00)TC
00
3!0*10
'000*30*2 Q
223!0*"
'000*30*2 Q
%00Q, "
%00Q, 10 P
*
10
*
"
=⇒
=++=
=++=
==
==
≥
<=
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GIA/ GIAÙ GIA TANG
(Incremental Quantity Discount ! Gi:+ tr< 98n v<
Gi:+ m&: ?o= $:;n%M /i [ Di b *i .S 5i ≤ . 5i b 4
÷
÷÷
=
+1
211
100
.
+ +,P
!!!!!!!
1-+ +,P
1-+ +,P
P
∑=
=.
1
1-. )P-1)(P-(+
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GIA/ GIAÙ GIA TANG
(Incremental Quantity Discount ! C$ J$ ton%
FP
)2R(C Q0
dQ
dTC
2
F
2
FQP
Q
)R (C R P
Q
2
FQ
Q
CR
R Q
TC
.
.*
.
....
..
+=⇒=
+++
+=
++=
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GIA/ GIAÙ GIA TANG(Incremental Quantity Discount !
T$&:6t to:+n Tn$ EO.i Tn$ c:+c "EO. Tn$ TCi c&:
c:+c "EO. C$o@n "EO. v8+i TC c@c tie&#
TCa
TC3
TC4 TC
`
54
53
5`
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GIA/ GIAÙ GIA TANG(Incremental Quantity Discount !
" ̂ &@M Z [ a_00 9vS C [ a0 9S [ 0#3. (9v! *i (9!
a00 40
a00 j 44hh h
4300 j a1hh _#
qa1hh _
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GIA/ GIAÙ GIA TANG(Incremental Quantity Discount !
i *i (9!
5i (9v!
Di (9!
0 40 4 0
4 h a00 `hh
3 _# 4300 hh_#
` _ a_00 ``h_
%%2$!%$TC ,21EOQ %%2$!%$TC
'"$"!'2
0*0!2%
2
3"2*0!2%*10
3"2
'00*0)(0 '00*10TC
02Q
21Q
3"10!2%*"
3"")(0*'00*2
Q
3"20!2%*10
0)(0*'00*2 Q
2
0
*
3
*
2
*
1
*
0
==⇒=
=+++
+=
=
==
+
=
=+
=
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GIA/ GIAÙ ÑAYC ,IEÄT(S&ecial Sale %rices!
Xe+t ?8@n% 9:t $:;n% B$i co+ s@ %i:m %i:+ ^tre=n %i:+ 98n v< t:@i t$8;i 9iem 9:t $:;n%
Tie7t Bie6m B$i 9:t 98n $:;n% 9:c ie6t
Q̂
.]
Q̂ 2Z
t
PF
2CR Q* =
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GIA/ GIAÙ ÑAYC ,IEÄT
(S&ecial Sale %rices!
2
*
**
**
**
*&
*
*
***
*
*&
1-Q
Q
P
d)-(PC 4
d-P
PQ
Fd)-(P
dR Q 0
dQ
d4
C-2R
dFQ -dQ-
2R
FQd)-(P -Q)
Q
2C (dTC-TC4
QCQ
R Q-Q PF
2Q
2R FQ d)-(P
2Q )Q-(QPQd)-(PTC
CR
FQ d)-(P
2
Q Qd)-(PTC
2
=⇒+=⇒=
+==
++++=
++=
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GIA/ GIAÙ ÑAYC ,IEÄT(S&ecial Sale %rices!
" ^&@M Z [ _000 9v2nS * [ 40 929vS ^ [ 4929vS
C[`0929$ [ 0#`S .] [ a00
1%2%!'%1-00
30$
10
1)-(10*30 4
30$1-10
00*10
0!3*1)-(10
'000*1 Q
2
*
=
=
=+=
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TANG GIAÙ ,IEÁT TZWLÙC('non %rices Increase!
PF2CR Q*=
t`t3t4
.]
t
*
aQ
l
lb Q̂t4 M t$8;i 9iem t:Fn%%i:+l [ .(t4!
5)F(P2CR Q*
a +=
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TANG GIAÙ ,IEÁT TZWLÙC('non %rices Increase!
=⇒
++=⇒=
++==
+++++=
++++=
1-Q
Q C4
6-
P
5)Q(P
PF
5R Q0
Q̂d
d4
C-2R
PFQ -Q
R
PF6 -
R
5)FQ(P 5TC-TC4
Q
CQ
R
6
PF2
6
R
Q
5)F(P2
Q
Q
ˆ
5)(PTC
CR
6 PF
2
6
R
Q PF
2
Q
R
6 PFQ̂ Q̂PTC
2
*
*
*
*
a*
2
*
a&
*a
*
a
&
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TANG GIAÙ ,IEÁT TZWLÙC('non %rices Increase!
" ^&@M Z [ _000 9v2nS * [ 40S C [ `0 929$S [ 0#`
l [ `a 9vf B [ 4 929v
2!31-00
30'304
22
30')-(3-10
3'1*11
0!3*10
'000*1
B)-(6-P
Q5)(P
PF
5R
Qˆ
3'170!3*1)8(10'000*30*2Q
2*
*
a*
*
a
=
=
=
+=
+
+=
=+=
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HEÄ THOÁNG AN X5AÁT HAQNGOAT
(Batc *y&e %roduction Systems! :n J$:m 98@c s:n &:7t v:; ton B$o t$eo ?o:@t N$ie& s:n J$:m s:n &:7t tre=n c&;n% t$ie7t < Ho:@c$ 9<n$ s:n &:7tM
X:+c 9<n$ so7 98n v< to7i & tron% mo'i ?o:@t s:n &:7tn$:m c@c tie& ton% c$i J$ $:;n% n:Fm# *$:=n o co=n% s&:7t 9e7n t;n% s:n J$:m t$eo n$&
c:&S s:n ?8@n%S m+c ton B$o $ie6n co+ c&: s:nJ$:m#
C:+c mo= $>n$ 8@n% s:n &:7t Bin$ te7 (E*.! Ñ8n $:;n% c$:6m .&ye7t 9<n$ m&: j ?:;m (/,D - /:Be or ,&y Decisions! N$ie& s:n J$:m (+ulti&le Items! T$8;i %i:n $e7t $:;n% (,unout *ime!
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WLNG AN X5AÁT KINH TEÁ(Economic %roduction Quantity -
E%Q! H:;n% n$:6J B$o v8+i to7c 9o6 ?ie=n t&@cS $)& $:@nS B$o=n%
9oi :n &:7t tie=& t$&@ 9on% t$8;iS m+c ton B$o n$o $8n
?8@n% ?o= $:;n% s:n &:7t#
ttJ
J
.
/
J jr
r
t
,
/ [ (J j r!tJ [ (J j r! .2J
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WLNG AN X5AÁT KINH TEÁ(Economic %roduction Quantity -
E%Q! Z M n$& c:& $:;n% n:Fm (9v2n! * M J$ s:n &:7t 98n v< (929v! . M ?8@n% ?o= $:;n% s:n &:7t (9v! JM to7c 9o6 s:n &:7t (9v2n%! r [ Z2N M to7c 9o6 n$& c:& (9v2n%! C M c$i J$ t$ie7t ?:6J s:n &:7t (92?! H M c$i J$ ton tr) (9 2 9v#n!
N M so7 n%:;y ?:;m vie6c tron% n:Fm (n%2n! M t$8;i %i:n c$8; (n%! tJ M t$8;i %i:n s:n &:7t m M so7 ?:n s:n &:7t tron% n:Fm
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WLNG AN X5AÁT KINH TEÁ(Economic %roduction Quantity -
E%Q! Ton% c$i J$ ton B$o $:;n% n:FmM J$ s:n
&:7tS J$ t$ie7t ?:6J v:; J$ ton tr)
8@n% s:n &:7t Bin$ te7
29
:)-(9HQ
Q
CR PR TC ++=
:LB
/9Q t
:)/9-(9HQPR TC
:)-H(9
2CR9 Q
029
:)-H(9
Q
CR -
dQ
dTC
**
9
**
*
2
=
=
+=⇒
=⇒
=+=
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WLNG AN X5AÁT KINH TEÁ(Economic %roduction Quantity -
E%Q! " ^&@M Z [ 30000 9v2n S N [ 30 n%2nS J [ 400 9v2n% [ a n%S
* [ 0 929vS H [ 40 929v#n C [ 30 92?
(d)1!001!2
100
'0)-(100*32*10 20000*%0TC
(d)320*'0B
;/&31!32
20000
Q
R m
32
'0)-(100*10
100*20000*20*2Q
(d/&4) '02%0/20000:
*
*
*
=
+=
==
===
==
==
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ÑLN HAQNG CHAÄ/(,acorderin!!
Ñ8n $:;n% c$:6m C$i J$ $)& $:@n
Ñ:+J +n% s:& Ton% c$i J$ :o
%om c: c$i J$98n $:;n% c$:6m B j c$i J$ 98n
$:;n% c$:6m 98nv< $:;n% n:Fm
*
*
**
*
QR m
5)9(H
:)-(9HQ
- N
RL
B
5)9(H
:)-5(9HQ PR TC
5
5 H
:)-H(9
2CR9 Q
=+=
++=
+=
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ÑLN HAQNG CHAÄ/(,acorderin!!
" ^&@M Z [ 30000 ̂ v2nS
N [ 30S J [ 400 9v2n%S [ a n% * [ 0 929vS H [ 40 929v#nS C [ 30 92?S B [ 929v#n
d1$
100*%)(10
'0)-(100*10"%*10-
2%0
*20000 B
;/&1'!310"%
20000 m
d10"%%
%10
2%0
20000 -100*10
100*20000*20*2 Q
=
+
=
==
=+
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7/17/2019 Chuong 2- DIS
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7/17/2019 Chuong 2- DIS
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WLNG AN X5AÁT KINH TEÁNHIEÀ5 AN *HA/
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7/17/2019 Chuong 2- DIS
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7/17/2019 Chuong 2- DIS
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HEÄ THOÁNG "LÙI KHOANG ÑAYT HAQNGCOÁ ÑÒNH(Fixed Order Interval Systems FOIS!
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7/17/2019 Chuong 2- DIS
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http://slidepdf.com/reader/full/chuong-2-dis 55/58
KHOANG ÑAYT HAQNG KINH TEÁ NHIEÀ5 AN*HA/(EOI . +ulti&le Items!
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7/17/2019 Chuong 2- DIS
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KHOANG ÑAYT HAQNG KINH TEÁ NHIEÀ5 AN*HA/(EOI . +ulti&le Items!
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7/17/2019 Chuong 2- DIS
http://slidepdf.com/reader/full/chuong-2-dis 57/58
KHOANG ÑAYT HAQNG KINH TEÁ NHIEÀ5 AN*HA/(EOI . +ulti&le Items!
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7/17/2019 Chuong 2- DIS
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KHOANG ÑAYT HAQNG KINH TEÁ NHIEÀ5 AN*HA/(EOI . +ulti&le Items!
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