อุดมศิลป์ ภาณุพงศ์. “The Attitude of Thai Phuan : Perspectives Towards their Group and Other Ethnic Groups”. Parichart Journal 29, no. 1 (July 29, 2016): 110–126. accessed September 11, 2026. https://so05.tci-thaijo.org/index.php/parichartjournal/article/view/49539.