Nawara, Gamal, Mohamed Mansour, and Ghada Mohamed. “Supplier Selection Using Two Phases Model”. American Scientific Research Journal for Engineering, Technology, and Sciences 37, no. 1 (October 20, 2017): 68–81. Accessed May 2, 2024. https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/3490.