Zukhrufillah, D.K. and Astriani, D. 2025. PROBLEM BASED LEARNING: UPAYA PENINGKATAN KETERAMPILAN PEMECAHAN MASALAH PESERTA DIDIK. BIOCHEPHY: Journal of Science Education. 5, 1 (Jun. 2025), 87-93. DOI:https://doi.org/10.52562/biochephy.v5i1.1449.