Sahrupi, Sahrupi, Gerry Anugrah Dwiputra, and Uswatun Chasanah. “Implementation of Lean Manufacturing to Enhance the Efficiency of Acrylic Resins Production Process”. Jurnal Sistem dan Manajemen Industri 4, no. 1 (July 28, 2020): 50-60. Accessed September 20, 2020. https://e-jurnal.lppmunsera.org/index.php/JSMI/article/view/1488.