Chaiyakan, Apiradee, Worawan Hemchayart, and Soison Sakolrak. “Teaching Thai as a Second Language to Ethnic Thai Khmer Children”. Journal of Mekong Societies 14, no. 1 (April 23, 2018): 109–132. accessed September 12, 2026. https://so03.tci-thaijo.org/index.php/mekongjournal/article/view/119683.