Hartina AS, Putra A. DEVELOPMENT OF STUDENT WORK SHEETS GUIDED INQUIRY MODEL ORIENTED BY CRITICAL THINKING ACTIVITIES IN VIBRATION, WAVE, AND SOUND MATERIALS IN CLASS VIII SMPN 31 PADANG. universe [Internet]. 2021 Jun. 17 [cited 2026 Apr. 18];2(1):59-65. Available from: http://universe.ppj.unp.ac.id/index.php/universe/article/view/50