Raveechatphong, R. . “Rishu’s Strings Instrument Phetdham Village at Phetchabun Province”. Journal of Research and Development Institute Rajabhat Maha Sarakham University, vol. 8, no. 2, Nov. 2021, pp. 279-88, https://so03.tci-thaijo.org/index.php/rdirmu/article/view/252304.