Selvia S, Mufit F. Design of Electronic LKPD with Integrated STEM PBL Model on Heat Material . Department of Physics Universitas Negeri Padang [Internet]. 2025 Sep. 27 [cited 2025 Oct. 4];3(3). Available from: https://ple.ppj.unp.ac.id/index.php/ple/article/view/267