songsaen, sivaporn 2023. The Development of the Credit Bank System Mechanism Model for the Management of Lifelong Learning Education at Chiang Rai Rajabhat University: The Development of the Credit Bank System Mechanism Model for the Management of Lifelong Learning Education at Chiang Rai Rajabhat University. Journal of Education Studies, Chulalongkorn University. 51, 3 (Sep. 2023), EDUCU5103007. DOI:https://doi.org/10.14456/educu.2023.25.