Zam-zam, N., Kaharu, S.N., Pahriadi, P., Azizah, A. and Putriwanti, P. 2026. Problem-Based Learning for Enhancing Learning Motivation in Elementary Science and Social Studies. Equator Science Journal. 4, 3 (Aug. 2026), 276–288. DOI:https://doi.org/10.61142/esj.v4i3.366.