Wiriyangkul, Montha, and Kanokwan Boonngeon. 2025. “The Development of Thai Tone Pronunciation Skills Using Tone Exercises with Phonics Techniques for Grade 3 Students”. Dhammathas Academic Journal 25 (4):111-24. https://so06.tci-thaijo.org/index.php/dhammathas/article/view/282382.