Phopongsin, S., A. Kaladee, and W. Chankong. “Creating a Learning Environment through Electronic Media Combined With Blended Learning in the First Aid and Basic Medical Care Course”. Public Health Policy and Laws Journal, vol. 7, no. 3, Aug. 2021, pp. 521-39, https://so05.tci-thaijo.org/index.php/journal_law/article/view/253136.