Wicks, C.T.
Operational research
Pan Books, 1971
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Wilkes, F.M.
Elements of operational research
McGraw-Hill, 1987
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Makower, M.S.
Operational research : problems, techniques and exercises
Butles and Tanner , 1970
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Eurographics '81
edited by Jose L. Encarnacao
North Holland, 1981
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Eddison, R.T.
Operational research in management / by R.T. Eddison, K. Pennycuick, and B.H.P. Rivett
Wiley , 1962
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