Fadillatul. H, H., & Ahmad Sopandi, A. (2020). Pelaksanaan Pembelajaran Matematika Bagi Anak Tunagrahita Ringan Kelas IX di Slb Negeri 1 Lima Kaum, Kabupaten Tanah Datar. Ranah Research : Journal of Multidisciplinary Research and Development, 2(2), 93-103. Retrieved from https://jurnal.ranahresearch.com/index.php/R2J/article/view/242