Arwaty, Mithen Lullulangi. 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. kuey [Internet]. 2024 Jul. 30 [cited 2025 Jul. 8];30(7):1027-31. Available from: https://kuey.net/index.php/kuey/article/view/6536