Maha, Yeni Lisaw. “The Workload Analysis to Determine Optimal Workforce in Employees at PT IJI”. Journal of Optimization System and Ergonomy Implementation 1, no. 1 (February 15, 2024): 1–11. Accessed May 20, 2024. https://ejournal.upnvj.ac.id/joseon/article/view/7440.