Firmanti, Pipit. “Mathematics Learning During Pandemic COVID-19 at Junior High School in Bukittinggi-Agam”. Kaunia: Integration and Interconnection Islam and Science Journal 17, no. 1 (July 23, 2021): 1–5. Accessed January 20, 2025. https://ejournal.uin-suka.ac.id/saintek/kaunia/article/view/2736.