Cahyani, A. N., M. Simbolon, and Algiranto. “The Development of LKPD (Student Worksheet) Assisted by PhET Simulation on Sound Wave Material”. International Journal of Applied Educational Research (IJAER), vol. 2, no. 6, June 2025, https://journal.multitechpublisher.com/index.php/ijaer/article/view/3119.