Liongson, L. Q. Linear programming cases in the water resources engineering classroom: Formulation and implementation with the linear programming language (LPL)package. Philippine Engineering Journal.
Chicago Style (17. basım) AtıfLiongson, Leonardo Q. "Linear Programming Cases in the Water Resources Engineering Classroom: Formulation and Implementation with the Linear Programming Language (LPL)package." Philippine Engineering Journal .
MLA (9th ed.) AtıfLiongson, Leonardo Q. "Linear Programming Cases in the Water Resources Engineering Classroom: Formulation and Implementation with the Linear Programming Language (LPL)package." Philippine Engineering Journal, .
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