Li Wang, and Jirarat Sitthiworachart. “A Systematic Literature Review Of The Effective Of Problem-Based Learning In Blended Learning Environment”. Educational Administration: Theory and Practice 30, no. 5 (May 27, 2024): 9877–9892. Accessed July 3, 2024. https://kuey.net/index.php/kuey/article/view/1183.