Husin, M., Usmeldi, U., Masdi, H., Simatupang, W., Fadhilah, F. and Hendriyani, Y. 2025. Project-Based Problem Learning: Improving Problem-Solving Skills in Higher Education Engineering Students . International Journal of Sociology of Education. 14, 1 (Feb. 2025), 62–84. DOI:https://doi.org/10.17583/rise.15125.