Gabriel Gloria Lumentut, Orbanus Naharia, Ferny Tumbel. Application Of The Problem-Based Learning Model To Improve Learning Outcomes Of Class X Biology Students At SMA Negeri 2 Tondano. Konstanta [Internet]. 2023 Jun. 22 [cited 2024 Nov. 22];1(2):59-67. Available from: https://ifrelresearch.org/index.php/konstanta-widyakarya/article/view/672