Hiranphiphitchai W, Phapor P, Phromkantha P. THE DEVELOPMENT OF ACHIEVEMENT IN READING AND WRITING DIPHTHONGS BY USING A SKILL EXCERCISE FOR PRATHOMSUKSA 3 STUDENTS AT BAN WANG TA THEP SCHOOL. JLR [internet]. 2023 Dec. 23 [cited 2025 Apr. 12];4(1-2):11-20. available from: https://so13.tci-thaijo.org/index.php/JOLRR/article/view/252