Rui, G., N. Pattananon, and K. Suksamnieng. “The short vocal music course for student in rural primary school at Muniu, Xiuyan county, China”. Journal of Modern Learning Development, vol. 8, no. 2, Feb. 2023, pp. 258-6, https://so06.tci-thaijo.org/index.php/jomld/article/view/259114.