Goh, H. S. E., S. Roslan, E. M. Baguri, S. Y. Ong, and S. Y. Li. “The Effects of Children’s Friendship Training on Social Skills and Quality of Play Among Children With Autism Spectrum Disorder”. International Journal of Learning, Teaching and Educational Research, vol. 19, no. 7, July 2020, pp. 225-4, http://www.ijlter.net/index.php/ijlter/article/view/295.