Nguyen, V.-N. T. ., H.-P. T. Tran, N.-A. . Doan, and V.-A. T. . Dao. “Using the Delphi Method to Explore Factors Affecting the Effectiveness of Pedagogical Competence Training on University Lecturers in Vietnam”. International Journal of Learning, Teaching and Educational Research, vol. 22, no. 12, Dec. 2023, pp. 42-61, http://www.ijlter.net/index.php/ijlter/article/view/1813.