Liongson, L. Q. (1982). Linear programming cases in the water resources engineering classroom: Formulation and implementation with the linear programming language (LPL) package. Philippine Engineering Journal.
Cytowanie według stylu Chicago (wyd. 17)Liongson, Leonardo Q. "Linear Programming Cases in the Water Resources Engineering Classroom: Formulation and Implementation with the Linear Programming Language (LPL) Package." Philippine Engineering Journal 1982.
Cytowanie według stylu MLA (wyd. 9)Liongson, Leonardo Q. "Linear Programming Cases in the Water Resources Engineering Classroom: Formulation and Implementation with the Linear Programming Language (LPL) Package." Philippine Engineering Journal, 1982.
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