Nguyen Van Huy, Nguyen Thanh Nam, and Bui Ngoc Bon. “The Importance of Speaking in English As a Foreign Language Between Skillful and Thoughtful Competencies: Studying Sociolinguistics Perspectives”. International Journal of English Language Studies 6, no. 2 (June 12, 2024): 153–159. Accessed September 1, 2025. https://al-kindipublishers.org/index.php/ijels/article/view/7334.