Atiyah, Ummi, Mawardi Mawardi, and Najib Hasan. “Analisis Kemampuan Penalaran Matematis Siswa Dalam Pembelajaran Online Learning System SD Negeri Kutabumi II”. YASIN 1, no. 2 (December 30, 2021): 146-153. Accessed September 19, 2024. https://ejournal.yasin-alsys.org/yasin/article/view/121.