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”, IJELS, vol. 6, no. 2, pp. 153–159, Jun. 2024, doi: 10.32996/ijels.2024.6.2.22.