Maulida, Rizki, Jane Elnovreny, and Erwin Ginting. “The Influence of the Project Based Learning Model on Student Knowledge Based on Science Process Skills (KPS) Viewed from Student Learning Motivation”. Cendikia : Media Jurnal Ilmiah Pendidikan 14, no. 2 (November 30, 2023): 91-97. Accessed May 1, 2026. http://www.ejournal.iocscience.org/index.php/Cendikia/article/view/4370.