CHANHTHAHONG, K., S. SYSOUPHANH, S. LITTHAVONG, P. PATHOUMVANH, and M. INVANHKHAM. “The Development of Using Lao Language for Communication of Teacher in Phonethong District, Luangprabang Province Academic Year 2020 - 2021: https://doi.Org/10.69692/SUJMRD0901168”. Souphanouvong University Journal Multidisciplinary Research and Development, vol. 9, no. 1, Mar. 2023, pp. 169-7, http://www.su-journal.com/index.php/su/article/view/339.