GUPTA PREM KUMAR. (2005). OPERATIONS RESEARCH. S.CHAND & COMPANY LTD.
Cita Chicago Style (17a ed.)GUPTA PREM KUMAR. OPERATIONS RESEARCH. NEW DELHI: S.CHAND & COMPANY LTD, 2005.
Cita MLA (9a ed.)GUPTA PREM KUMAR. OPERATIONS RESEARCH. S.CHAND & COMPANY LTD, 2005.
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