Saengpakdeejit , Rakchanok, Chuthaporn Wongphut, Apisara Konsin, Ornpiya Maneekanon, Varitsara Botmart, and Machima Weerasilp. “Factors Influencing Confidence in English Language Communication of English Program Students: A Case Study at the Faculty of Interdisciplinary Studies, Khon Kaen University”. Journal of MBU Humanities 16, no. 1 (June 26, 2024): 18–32. accessed September 13, 2026. https://so06.tci-thaijo.org/index.php/JoMbuHu/article/view/272265.