tobing, Maria rezeki lumban, Emelda Thesalonika, and Natalina Purba. “The Effect of Project Based Learning Model on Students’ Critical Thinking Abilities in the Science Subject of Grade V UPTD SDN 124385 Pematangsiantar”. MSJ : Majority Science Journal 3, no. 2 (May 9, 2025): 28–38. Accessed August 3, 2026. https://jurnalhafasy.com/index.php/msj/article/view/324.