TY  - BOOK
AU  - Tiwari, N. K., 
AU  - Shandilya, Shishir K., 
TI  - Operations Research 
SN  - 9788120329669
U1  - 658.4032 
PY  - 2006///.
CY  - New Delhi
PB  - PHP Learning Private Limited, 
N1  - This book is having Bibliography on page no 285-287
ER  -