Jalis Putri YJ, Desnita D. THE USE OF SMARTPHONES IN PHYSICAL LEARNING ON SOUND WAVES . Department of Physics Universitas Negeri Padang [Internet]. 2024 Apr. 26 [cited 2025 Feb. 23];2(1):17-2. Available from: https://ple.ppj.unp.ac.id/index.php/ple/article/view/33