Analysis of Mental Workload in Plastic Packaging Production Operators’ Activities Using the Modified Cooper Harper Method. JKIE (Journal Knowledge Industrial Engineering), [S. l.], v. 13, n. 2, p. 135–148, 2026. DOI: 10.35891/qv5qfn29. Disponível em: https://jurnal.yudharta.ac.id/v2/index.php/jkie/article/view/7137. Acesso em: 5 sep. 2026.