Karim, Saeful, and Duden Saepuzaman. 2016. “ANALISIS KESULITAN MAHASISWA CALON GURU FISIKA DALAM MEMAHAMI KONSEP GERAK PARABOLA”. PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) 5 (October), SNF2016-OER. https://doi.org/10.21009/0305010409.