Thu, Tran Thi Minh. “How to Improve Speaking Skills for Undergraduates at Dong Nai Technology University”. Journal of English Language Teaching and Applied Linguistics 5, no. 2 (April 25, 2023): 81–89. Accessed June 8, 2025. https://al-kindipublishers.org/index.php/jeltal/article/view/5259.