Simangunsong, R. et al. 2026. The Influence Of The Project Based Learning (PJBL) Model On Learning Outcomes Students’ Science Learning On The Material Of Harmony In Ecosystems Class V. Jurnal Ilmu Sosial dan Humaniora . 3, 4 (Jul. 2026), 589–600. DOI:https://doi.org/10.58540/isihumor.v3i4.2254.