Xiaobei, M., T. Sondhiratna, and K. Deachmee. “Surveying on the Elements and Functions of Students’ Chorus, Chongwen School, Yangxi County, Guangdong Province, China”. Journal of Modern Learning Development, vol. 9, no. 11, Nov. 2024, pp. 988-95, https://so06.tci-thaijo.org/index.php/jomld/article/view/292529.