J. P. Catapang, R. P. Gonzales, and E. B. Ayo, “Student Continued Engagement in Taekwondo Activity in Selected Colleges and Universities: A Self-Determination Theory-Based Process Model”, Int. J. Multidiscip. Appl. Bus. Edu. Res., vol. 7, no. 2, pp. 603–612, Feb. 2026, doi: 10.11594/.