Wannakul, Udomwadee, Khwanying Sriprasertpap, and Rittichai Onming. 2021. “Development of an Instructional Package Using Gamification Techniques for Enhancing Teamwork Skills in Research & Knowledge Formation Subject”. Ratchaphruek Journal 19 (3):130-38. https://so05.tci-thaijo.org/index.php/Ratchaphruekjournal/article/view/252661.