Kurniawan, I., and G. Sirait. “ANALISIS KELELAHAN KERJA DI PT MARUWA INDONESIA”. Computer and Science Industrial Engineering (COMASIE), vol. 4, no. 5, Jan. 2021, pp. 53-61, https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/3471.