“A SELF-DETERMINATION THEORY BASED MOTIVATIONAL MODEL ON INTENTIONS TO DROP OUT OF VOCATIONAL SCHOOLS IN VIETNAM”. Malaysian Journal of Learning and Instruction 14, no. 1 (June 28, 2017): 1–21. Accessed November 30, 2025. https://educationmalaysia.co.uk/index.php/mjli/article/view/mjli2017.14.1.1.