Thavorn, Pattita, and Sarawut Kraisame. “Tonal Variation by Region of Tai Khun in Chiang Mai Province”. Journal of Arts and Thai Studies 45, no. 2 (August 29, 2023): E195 (1–19). accessed June 24, 2025. https://so08.tci-thaijo.org/index.php/artssu/article/view/195.