Nopi Oktaviya. Needs Analysis : Development Of Physics Lkpd Based On Problem Based Learning To Facilitate Critical Thinking Skills Of Senior High School Students. Department of Physics Universitas Negeri Padang [Internet]. 2024 Apr. 26 [cited 2025 Jun. 13];2(1). Available from: https://ple.ppj.unp.ac.id/index.php/ple/article/view/79