Supasawhan, Kanyarat, Janmanee Nakamunhang, Jutharat Onphisamai, and Suparin Daoruang. “THE DEVELOPMENT OF DIPHTHONG READING BY USING READING EXERCISES OF THE 5TH GRADE PRIMARY STUDENTS AT MAE PONG PRACHA SAMAKKEE SCHOOL”. JOURNAL OF LANNA RESEARCH REVIEW 1, no. 2 (December 28, 2020): 1–10. accessed October 4, 2026. https://so13.tci-thaijo.org/index.php/JOLRR/article/view/4.