Umar, Umar, and Arif Widodo. “Analisis Faktor Penyebab Rendahnya Kemampuan Akademik Siswa Sekolah Dasar Di Daerah Pinggiran”. Jurnal Educatio FKIP UNMA 8, no. 2 (April 30, 2022): 458–465. Accessed May 29, 2023. https://ejournal.unma.ac.id/index.php/educatio/article/view/2131.