Andayani, Wulan Sri, et al. “Implementation of Case Based Learning Model on Vibration and Wave Materials on Student’s Cognitivie Learning Outcomes of Grade VIII SMPN 7 Pekanbaru”. Journal of Science, Learning Process and Instructional Research, vol. 3, no. 2, Aug. 2025, pp. 13-20, https://journal.riau-edutech.com/index.php/joslepi/article/view/115.