Usparianti L Y, Marlina L, Wiyono K. Analysis of Physics E-LKPD Needs Based on Problem-Based Learning to Improve Students’ Critical Thinking Skills. J. Pendidik. Fis. Teknol. [Internet]. 2023 Jun. 29 [cited 2024 Nov. 23];9(1):177-84. Available from: http://jurnalfkip.unram.ac.id/index.php/JPFT/article/view/5093