Gupta, M.P. Quantitative Techniques for Decision Making - 4th edition. - New Delhi : Prentice-Hall of India, 2011. - xiv,758 p. ( Rk #8.b, Sh # 04). 24 cm. ISBN: 812034278X (paperback) 9788120342781 (paperback) Dewey Class. No.: 658.4033