Silaban, Ramlan, Freddy TM Pannggabean, Melhyada Veronika Panggabean, Pelita Ananda Sianturi, and Irving Josafat Alexander. 2021. “ANDROID-BASED LEARNING MEDIA DEVELOPMENT FOR CHEMICAL BALANCE MATERIALS”. Jurnal Ilmu Pendidikan Indonesia 9 (3):121-31. https://doi.org/10.31957/jipi.v9i3.1799.