Tarigan, Anjany Tasya Surabika Br, Siswanto Siswanto, Ramlan Silaban, and Ani Sutiani. “Needs Analysis for Developing Ethnoscience-Integrated Project-Based Learning Chemistry Teaching Materials Supported by Digital Video on Macromolecule Topics in Senior High School”. Journal of Educational Sciences 10, no. 6 (June 5, 2026): 338–350. Accessed October 28, 2026. https://jes.ejournal.unri.ac.id/index.php/JES/article/view/2319.