el tigi, a. s. a. (1964). outline of course operations research techniques & investment criterion. the institute of national planning.
Chicago-referens (17:e uppl.)el tigi, a. s. a. Outline of Course Operations Research Techniques & Investment Criterion. cairo: the institute of national planning, 1964.
MLA-referens (9:e uppl.)el tigi, a. s. a. Outline of Course Operations Research Techniques & Investment Criterion. the institute of national planning, 1964.
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