“OPTIMIZATION OF LEARNING MANAGEMENT SYSTEM BASED ON DIGITAL MODULES IN POST- COVID -19 PANDEMIC DIFFERENTIAL CALCULUS COURSES”. Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam 27, no. 2 (December 1, 2022): 13–19. Accessed July 1, 2026. https://ejournal-science.upi.edu/jpmipa/article/view/818.