Sidabutar, Efimah, Novia Nababan, and Mentari Manalu. 2026. “Tren Penelitian Problem Based Learning Terintegrasi STEM Dalam Pembelajaran IPA: Systematic Literature Review”. Journal of Educational Research and Humaniora (JERH) 4 (1):1-14. https://doi.org/10.51178/jerh.v4i1.3413.