Studying The Influence of Raw Materials Constrain on Maximize The Revenue of Products Mix Using Simplex Linear Programming Method “Applied Study in Heavy Engineering Equipment State Company”. J. eng. sustain. dev. [Internet]. 2013 Mar. 1 [cited 2024 Jul. 3];17(1):Ar-62. Available from: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1086