Rubiana, I., A. Priana, and S. Santika. “Development of BMAIN (Basic Motion Assisted Instruction) Learning Model for Recognition of Two-Dimensional Figure for Children With Mild Mental Retardation”. Journal of Physical Education and Sports, Vol. 7, no. 3, Dec. 2018, pp. 261-7, https://journal.unnes.ac.id/sju/jpes/article/view/26226.