Mudinillah, A., Kuswandi, D. ., Erwin, E., Sugiarni, S., Winarno, W., Annajmi, A. and Hermansah, S. (2024) “Optimizing Project-Based Learning in Developing 21st Century Skills: A Future Education Perspective”, Qubahan Academic Journal, 4(2), pp. 86–101. doi: 10.48161/qaj.v4n2a352.