Sulistyaningrum H, Cacik S, Winata A, Munawaroh M. The Feasibility of Developing Learning Devices Science Concept Based on Android for College Students in Elementary Teaching Program. pssh [Internet]. 2021Mar.9 [cited 2024Nov.21];1:37-8. Available from: https://pssh.umsida.ac.id/index.php/pssh/article/view/17