Diomara N, Dewi, Elvia R. PENGEMBANGAN BAHAN AJAR BERBASIS ANDROID PADA MATERI SISTEM KOLOID MELALUI PENDEKATAN PROBLEM BASED LEARNING. Alo [Internet]. 2022 Dec. 22 [cited 2025 Apr. 5];6(2):131-4. Available from: https://ejournal.unib.ac.id/alotropjurnal/article/view/24968