Doyan, A., Harjono, A., & Qadafi, M. (2024). Trends Research Project Based Learning (PjBL) Model to Improve Problem Solving Skills in Students’ Science Learning (2015-2024): A Systematic Review. Jurnal Penelitian Pendidikan IPA, 10(7), 498–507. https://doi.org/10.29303/jppipa.v10i7.8280