ภักดีเทวา ร. Development of an Online Instructional Model Together with Problem Based Learning Based on MOOC Instructional Standards and Practice to Enhance Problem Solving Thinking Skill For Sukhothai Thammathirat Open University Students. ECT Journal [Internet]. 2021 Jun. 11 [cited 2024 Apr. 30];16(20):92-109. Available from: https://so01.tci-thaijo.org/index.php/ectstou/article/view/246867