Wiono, W.J. and Siregar, Y.S. 2024. The Effectiveness of Problem-Based Learning on Ecosystem Content toward Critical Thinking in Terms of Students’ Metacognitive Awareness. Phenomenon : Jurnal Pendidikan MIPA. 14, 1 (Nov. 2024), 85–102. DOI:https://doi.org/10.21580/phen.2024.14.1.22440.