Kalavathy S. (2013). Operations Research (4th.). Vikas Publishing Housr Pvt Ltd.
Chicago-čujuhus (17. p.)Kalavathy S. Operations Research. 4th. New Delhi: Vikas Publishing Housr Pvt Ltd, 2013.
MLA-čujuhus (9. p.)Kalavathy S. Operations Research. 4th. Vikas Publishing Housr Pvt Ltd, 2013.
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