Febriansyah, Moh. Rizky, Eko Yuliyanto, and Yusrin. “Meta-Analysis: The Influence of The Problem-Based Learning Model on Environmental Problem-Solving Ability”. Proceeding Education, Science, and Technology International Conference  2, no. 1 (August 23, 2024): 95–105. Accessed December 29, 2024. http://103.97.100.158/index.php/edusciencetech/article/view/572.