Laksmi ML, Sari DP, Rinanto Y, Sapartini RR. Implementation of Problem Based Learning to Increase Scientific Explanation Skill in Biology Learning about the Environment. JL4D [Internet]. 2021 Nov. 17 [cited 2024 Apr. 26];8(3):532-40. Available from: https://jl4d.org/index.php/ejl4d/article/view/531