syahrial, syahrial, and Rizki Prakasa hasibuan. 2022. “ANALISIS BEBAN KERJA FISIK DAN MENTAL DI PT. GHIMLI INDONESIA”. Computer and Science Industrial Engineering (COMASIE) 6 (1):126-34. https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/5034.