Riana T. Mangesa, Abdul M. Mappalotteng, Veronika A. Tandirerung, Mithen Lullulangi (2021) “Online Trends on Project-Based Learning Model: Effective for Increase Motivation, Activity and Learning Outcomes”, Turkish Journal of Computer and Mathematics Education (TURCOMAT), 12(14), pp. 5070–5080. doi: 10.17762/turcomat.v12i14.11519.