Melanie TS, ’Ardhuha J, Taufik M, Harjono A. Problem-Based Learning Assisted by Mobile Pocket Book in Mechanical Wave to Enhances Students’ Concepts Mastery and Creativity. J. Pendidik. Fis. Teknol. [Internet]. 2023 Dec. 13 [cited 2024 May 13];9(2):234-42. Available from: https://jurnalfkip.unram.ac.id/index.php/JPFT/article/view/5454