00524nam a22001937a 4500 20260921163336.0 250207b |||||||| |||| 00| 0 eng d 9788121909686 eng 519.92 G P K Gupta, Prem Kumar and Hira, D. S. 3797 Operation Research Prem Kumar Gupta and D. S. Hira 1st New Delhi : Sultan Chand, 2013 Mathematics Mathematics 50 Operation research BK 16031 16031 0 0 0 0 NDCL NDCL CURRENT_STACK 2017-05-08 695.00 6 3 43627 2026-10-21 2026-09-21 17:25:07 2026-09-21 2025-02-07 BK