Arwaty and Mithen Lullulangi 2024. Application Of Problem Based Learning To Improve Learning Outcomes On The Subject Of Ecosystems, Class Vi Students Of State Primary School 5 Bungoro Pangkep, South Sulawesi Indonesia. Educational Administration: Theory and Practice. 30, 7 (Jul. 2024), 1027–1031. DOI:https://doi.org/10.53555/kuey.v30i7.6536.