Lengwiriyakul, Khet. “Senses of the word /tɛ̀ː/ in Old Thai (13th – 15th century CE)”. Journal of Letters 53, no. 1 (June 26, 2024): 144–181. accessed December 6, 2025. https://so03.tci-thaijo.org/index.php/jletters/article/view/266115.