هاشم مزق. Solve the multi-objective linear programming model using Duality the (Dual Model). مجله اقتصاديات الاعمال للبحوث التطبيقيه [Internet]. 2021Nov.28 [cited 2024May18];(خاص-ج1). Available from: https://uofbejar.net/index.php/new/article/view/51