Tubagus, Munir, Ichsan Ichsan, suhaimi Suhaimi, Abdul Rahman, and Tomi Apra Santosa. “Effect Size of STEM-Based Problem Based Learning Model on Problem Solving Ability in Students”. Edumaspul: Jurnal Pendidikan 7, no. 1 (March 1, 2023): 1519-1530. Accessed May 19, 2024. https://ummaspul.e-journal.id/maspuljr/article/view/6223.