Nichapat Uenghemanun ณ. อ. “ the Competition Was Initiated by Her Royal Highness Princess Maha Chakri Sirindhorn”. Journal of Fine and Applied Arts Khon Kaen University, vol. 7, no. 2, Jan. 2016, pp. 84-106, https://so02.tci-thaijo.org/index.php/fakku/article/view/46997.