Phiraphatphong, S., Sujaree, T. and Nachairit, D. 2026. Development of Mandarin Chinese Listening-Speaking Ability Using Role-Play Activities Combined with Vocabulary Exercises of Grade 9 Students in the Foreign Languages Learning Area (Chinese). Journal of Education Rajabhat Maha Sarakham University. 23, 1 (Apr. 2026), 111–120.