Hasmar, F. A., S. Siswoyo, and C. E. Rustana. “PENGEMBANGAN VIDEO PEMBELAJARAN GELOMBANG BUNYI MENGGUNAKAN MODEL PROBLEM BASED LEARNING (PBL)”. PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL), Vol. 9, no. 1, Dec. 2020, p. SNF2020PF-131, doi:10.21009/03.SNF2020.02.PF.19.