Jitpilai, S. “PHI TA KHON FESTIVAL MULTIMEDIA DEVELOPMENT DAN SAI DISTRICT, LOEI PROVINCE”. Journal of Graduate School Sakon Nakhon Rajabhat University, vol. 13, no. 61, June 2016, pp. 155-64, https://so02.tci-thaijo.org/index.php/SNGSJ/article/view/59248.