Gopikuttan, G. (1987). Quantitative methods and operations research: For business and economics. Himalaya publishing house.
Trích dẫn kiểu ChicagoGopikuttan, G. Quantitative Methods and Operations Research: For Business and Economics. Bombay: Himalaya publishing house, 1987.
Trích dẫn MLAGopikuttan, G. Quantitative Methods and Operations Research: For Business and Economics. Himalaya publishing house, 1987.
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