Li, Huichun, and Xiangyun Du. “Teachers’ Perspective of Their Role and Student Autonomy in the PBL Context in China”. International Journal of Learning, Teaching and Educational Research 10, no. 2 (February 28, 2015): 18–31. Accessed April 20, 2026. https://ijlter.net/index.php/ijlter/article/view/1119.