ขนิษฐานันท์ วิไลวรรณ. “The Tais of North Vietnam: ฺBrief Culture and Linguistics Sketches”. Language and Linguistics 21, no. 1 (March 28, 2019): 1–31. accessed September 11, 2026. https://so04.tci-thaijo.org/index.php/joling/article/view/180613.