Gupta, P. K., & Hira, D. (2023). Operations Research (7th.). S.Chand.
Chicago-čujuhus (17. p.)Gupta, Prem Kumar, juo D.S Hira. Operations Research. 7th. New Delhi: S.Chand, 2023.
MLA-čujuhus (9. p.)Gupta, Prem Kumar, juo D.S Hira. Operations Research. 7th. S.Chand, 2023.
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