คามวัลย์ ป., กมลศิลป์ ด. and กมลศิลป์ ด. 2018. Management of Vocation Education by Informal and Non-formal Education Centre in Mung District of Roi Et Province. Academic Journal of Mahamakut Buddhist University Roi Et Campus. 7, 2 (Feb. 2018), 147–156.