Chaytaveep, Tirachai, and Dendow Chonllawit. 2023. “Effectiveness of A Concept Attainment Mode with Graphic Organizers on Learning Achievement of Thai Language Principles on Thai Parts of Speech through of Prathomsuka IV Students”. Interdisciplinary Academic and Research Journal 3 (2). Maha Sara Kham, TH.:569-86. https://doi.org/10.14456/iarj.2023.91.