Sappaile, Baso Intang, Galuh Hartinah, Hendrik Hendrik, Sofiyatul Anshoriyah, and Ermi Dikta Sumanik. 2025. “The Impact of Project-Based Learning on Students’ Collaboration Skills in Secondary Schools”. International Journal of Educational Research Excellence (IJERE) 4 (1):76-86. https://doi.org/10.55299/ijere.v4i1.1268.