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শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি.Demʹi͡anov, Vladimir F., Aleksandr M. .Rubinov, এবং George M. .Kranc. Approximate Methods in Optimization Problems. 2th. ed. New York: American Elsevier Pub. Co., 1970.
M.L.A (9 ম সংস্করণ) উদ্ধৃতি.Demʹi͡anov, Vladimir F., et al. Approximate Methods in Optimization Problems. 2th. ed. American Elsevier Pub. Co., 1970.