Phopim, Yanisa, and Phitcharie Koanamsai. “The Development of English Speaking Proficiency for the 5th Grade Stuents at Ponrom Anusorn School in Lopburi”. Journal of Asian Language Teaching and Learning 6, no. 3 (December 30, 2025): 72–79. accessed September 22, 2026. https://so10.tci-thaijo.org/index.php/jote/article/view/2867.