Ramadhan, Anas Anugerah, ⁠Sukanta ⁠Sukanta, and Risma Fitriyani. “Determination of Standard Time With the Stopwatch Time Study Method at PT BI”. Operations Excellence: Journal of Applied Industrial Engineering 17, no. 2 (July 31, 2025): 201–211. Accessed May 28, 2026. https://training-ojs3-publikasi.mercubuana.ac.id/index.php/oe/article/view/33098.