Benreem, P. . ., and C. Udomphan. “A Trend of Change in the Vocabulary of Sakom Dialect Spoken by People of Three Generations”. Journal of Humanities and Social Sciences Suratthani Rajabhat University, vol. 12, no. 2, Dec. 2020, pp. 34-58, https://so03.tci-thaijo.org/index.php/jhsc/article/view/242506.