Mutia, M., and M. Iswari. “Meningkatkan Motorik Halus Melalui Lego Dasar Bagi Anak Tunagrahita ”. Ranah Research : Journal of Multidisciplinary Research and Development, Vol. 2, no. 2, Jan. 2020, pp. 73-80, https://jurnal.ranahresearch.com/index.php/R2J/article/view/237.