Rungrojsuwan, Sorabud. “LANGUAGE DEVELOPMENT OF CHILDEN WITH INTELLECTUAL DISABILITY: A REVIEW OF RESEARCH STUDIES IN THAULAND AND THE INTERNATIONAL ARENA”. Social Science Asia 7, no. 2 (March 18, 2021): 21-36. Accessed April 15, 2021. https://socialscienceasia.nrct.go.th/index.php/SSAsia/article/view/237.