Hassan, Mohd Hasnun Arif, and Nur Aqilah Othman. “Flipped Classroom Approach in Rigid Body Dynamics: A Case Study of Five-Semester Observation”. International Journal of Engineering Pedagogy (iJEP), vol. 11, no. 1, Jan. 2021, pp. pp. 87-94, doi:10.3991/ijep.v11i1.15005.