Lumbantoruan, Paskadian E, and Sri Zetli. 2020. “Evaluasi Penerapan Seiri, Seiton, Seiso, Seiketsu Dan Shitsuke Di PT Dynacast Indonesia”. Computer and Science Industrial Engineering (COMASIE) 3 (3):131-40. https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/2274.