Ni Kadek RIni Purwati, & Ni Ketut Erawati. (2021). PANDEMIC CHALLENGE: EVALUATION OF ONLINE LEARNING USING IMPORTANCE PERFORMANCE ANALYSIS (IPA) . De Fermat : Jurnal Pendidikan Matematika, 4(1), 44–53. Retrieved from https://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/159