Namsanga, P., A. P. D. P. Sapaso, and A. P. D. P. Pantasri. “Higher Education Piano Learning Management in North Eastern Thailand”. Journal for Developing the Social and Community, vol. 6, no. 2, Dec. 2019, pp. 19-30, https://so03.tci-thaijo.org/index.php/rdirmu/article/view/233141.