Uraiwan Praimee, Wannasakphijit Boonserm. The Effects of Learning Activities on Waste and Sewage Management Using Question and Problems-Based Learning for Undergraduate Students of Mahasarakham University, Thailand. JEI [Internet]. 2024 Jun. 19 [cited 2024 Nov. 24];7(1):pp. 72-91. Available from: https://macrojournal.org/index.php/jei/article/view/1895