Chau, N. T. T., P. Anunsiriwat, and S. Kongsirirat. “Culture Reflected in Address Terms in Thai and Vietnamese Languages”. Journal of Mekong Societies, vol. 13, no. 3, Dec. 2017, pp. 77-99, https://so03.tci-thaijo.org/index.php/mekongjournal/article/view/107414.