Nailufar, Y., Safruddin, S., & Zain, M. I. (2021). Analysis of Teacher Difficulties in Online Learning on Mathematics Subjects. Prisma Sains : Jurnal Pengkajian Ilmu Dan Pembelajaran Matematika Dan IPA IKIP Mataram, 9(2), 280–288. https://doi.org/10.33394/j-ps.v9i2.4376