Hamteerapitak, S., N. Sritho, and J. SangAroon. “Survey of Year 1 -3 students’ Musical Skill Needs Musical Education Program Maha Sarakham Rajabhat University”. Journal of Education Rajabhat Maha Sarakham University, vol. 18, no. 1, Mar. 2021, pp. 157-66, https://so06.tci-thaijo.org/index.php/edu-rmu/article/view/251571.