Sena, Khanittha, Supot Ingart, and Sayamon Insa-ard. 2022. “The Effects of Demonstration Videos on the Management of Student Activities With the Deming Cycle (PDCA) for Undergraduates”. Education and Communication Technology Journal 17 (22):1-16. https://so01.tci-thaijo.org/index.php/ectstou/article/view/249809.