Somnam, Sira. 2020. “Development of an Activity Management Model of Supplementary Textbook Design to Enhance Thai Language Skills Using Experiential Participatory Learning, Spatial Identity, and the Quest Model to Promote Thai Reading and Writing Skills for Learners in the”. Journal of Education Studies 48 (1). Bangkok, Thailand:311-31. https://so02.tci-thaijo.org/index.php/EDUCU/article/view/240868.