Sari, D. P., Tjandrakirana, T. and Kuntjoro, S. (2018) “APPLYING SCIENCE LEARNING PhET SIMULATION TO IMPROVE PROCESS SKILL AND KNOWLEDGE ASPECT OF JUNIOR HIGH SCHOOL STUDENT”, JPPS (Jurnal Penelitian Pendidikan Sains), 7(2), pp. 1496–1500. doi: 10.26740/jpps.v7n2.p1496-1500.