THEPPASOULITHONE, Phonesavanh, et al. “Investigating about Quality Assurance of Producing Grauated Students in Facudents in Faculty of Education at Champ Asack University ”. Champasack University Scientific Journal, vol. 4, no. 4, July 2020, pp. 1-14, http://cu-journal.com/index.php/files/article/view/27.