Leelahacheewa, Phutthawadee, Sira Somnam, and Pornsuda Insan. 2026. “DEVELOPMENT OF LEARNING PACKAGE ON THAI PRONUNCIATION SKILLS THROUGH PHONICS APPROACH AND FIDEL CHARTS AIDS FOR VIETNAMESE LEARNERS”. Journal of MCU Nakhondhat 13 (7). Nakhon Si Thammarat, Thailand:37-49. https://so03.tci-thaijo.org/index.php/JMND/article/view/301103.