Didi Syahrir, Yeni Erita, Feby KURNIAWAN, Vany Qhairum Nisa UTAMI. Improving IPS Learning Outcomes for Elementary School Students in Each Class Using the Problem Based Learning Model. Radinka J. Science & Systematic L. Review [Internet]. 2023 Mar. 31 [cited 2026 Sep. 21];1(1):14-22. Available from: https://rjupublisher.com/ojs/index.php/RJSLR/article/view/87