Thi Ben, Pham, Pham Thi Van, Pham Thi Hang, Chu Thi Tuyen, and Pham Hoang Ha. “MULTIPLE OPPOSITIONS APPROACH USED IN SPEECH THERAPY OF CHILDREN WITH SPEECH SOUND DISORDERS: REVIEW AND SUGGESTIONS FOR USING IN VIETNAMESE”. HNUE Journal of Science: Journal of Educational Science 69, no. 5A (December 16, 2024): 219–227. Accessed July 11, 2026. https://hnuejs.edu.vn/es/article/view/584.