Khatami, Muhammad, Rosnani Ginting, and Aulia Ishak. “Analysis of Production Line Balance With Helgeson Birnie Approach on Plastic Chopping Machine”. Jurnal Sistem Teknik Industri 25, no. 1 (January 28, 2023): 50–55. Accessed August 11, 2025. https://idjpcr.usu.ac.id/jsti/article/view/9288.