Muhammad Rangga Danu Putra, Muhammad Sultan, Ida Ayu Indira Dwika Lestari, Iwan M Ramdan, and Dewi Novita Hardianti. “The Correlation Between Workload, Work Duration and Work Shifts With Work Fatigue Among Production Workers in PT X Samarinda”. Health Safety Environment Journal 4, no. 1 (March 24, 2025): 50–55. Accessed December 6, 2025. https://ejournal.upnvj.ac.id/HSE/article/view/9417.