Wongweerawinit, C., and S. . Thuntawech. “The Music Instructional Model of Mattayom 1, During the Covid-19 Pandemic: A Case Study Bangkok Christian College”. Rangsit Music Journal, vol. 17, no. 1, Jan. 2022, pp. 1-16, https://so06.tci-thaijo.org/index.php/rmj/article/view/250745.