Darmaji, D., A. Astalini, D. A. Kurniawan, F. I. Putri, R. Perdana, and F. Fuldiaratman. “Student’s Need Analysis in Using Ordinary Differential Equation E-Module of Mathematical Physics II”. Momentum: Physics Education Journal, vol. 7, no. 1, Jan. 2023, pp. 107-15, doi:10.21067/mpej.v7i1.7092.