Ngaisah, N. C., S. Zubaedah, and A. Nurjanati. “Educator’s Strategy in Stimulating Speech Delay for Children With Mild Mental Retardation”. JOYCED: Journal of Early Childhood Education, vol. 3, no. 1, June 2023, pp. 35-46, doi:10.14421/joyced.2023.31-04.