Cong, Nhat Nguyen, Hang Phan Thi Thuy, Oanh Tran Thi Kim, and Phuong Nguyen Viet. “Interdisciplinary Teaching in STEM Education: A Systematic Synthesis of Teachers’ Competencies at Lower and Upper Secondary Levels”. International Journal of Learning, Teaching and Educational Research 24, no. 11 (November 30, 2025): 808–625. Accessed April 20, 2026. http://www.ijlter.net/index.php/ijlter/article/view/2609.