Mai, T. H. A. ., T. T. H. . Phan, D. D. Phan, and T. T. T. . Nguyen. “Awareness and Confidence of Vietnamese Primary School Teachers towards STEMIntegrated Teaching Approach”. International Journal of Learning, Teaching and Educational Research, vol. 22, no. 11, Nov. 2023, pp. 170-87, http://www.ijlter.net/index.php/ijlter/article/view/1796.