Husin, M., U. Usmeldi, H. Masdi, W. Simatupang, F. Fadhilah, and Y. Hendriyani. “Project-Based Problem Learning: Improving Problem-Solving Skills in Higher Education Engineering Students”. International Journal of Sociology of Education, vol. 14, no. 1, Feb. 2025, pp. 62-84, doi:10.17583/rise.15125.