Tsai, Deng-Maw, and Ji-Cheng Wu. “Economic Production Quantity Concerning Learning and the Reworking of Imperfect Items”. Yugoslav Journal of Operations Research 22, no. 2 (September 1, 2012): 313–336. Accessed May 22, 2026. https://yujor.fon.bg.ac.rs/index.php/yujor/article/view/346.