ภูมิพันธุ์ ณัฐวุฒิ. “Development of a Web-Based Blended Learning Model to Enhance Communication and Collaborative Working for the 21st Century Learning Skills”. Journal of Graduate School, Pitchayatat, Ubon Ratchathani Rajabhat University 15, no. 1 (April 20, 2020): 51–62. Accessed May 7, 2024. https://so02.tci-thaijo.org/index.php/Pitchayatat/article/view/241491.