Uraiwan Praimee, and Wannasakphijit Boonserm. 2024. “The Effects of Learning Activities on Waste and Sewage Management Using Question and Problems-Based Learning for Undergraduate Students of Mahasarakham University, Thailand”. Journal of Educational Issues 7 (1):pp. 72-91. https://doi.org/10.5296/jei.v7i1.18267.