Folanda, Gio, and Ofianto Ofianto. 2022. “Development of Android-Based Multimedia Media (M2BA) to Improve Students’ Chronological Thinking in Indonesian History Learning in the Pre-Aksara Period”. LANGGAM: International Journal of Social Science Education, Art and Culture 1 (02), 30-35. https://doi.org/10.24036/langgam.v1i02.23.