Firmansyah, A., A. Andriani, N. Najamuddin, Suhanda, and H. Setiawan. “RELATIONSHIP OF PARENTS ROLE WITH SOCIAL SKILLS OF MENTAL RETARDATION CHILDREN”. Pelita Health and Education Journal, Vol. 1, no. 1, July 2020, pp. 1-5, https://journal.pelitamedika.org/index.php/pm/article/view/1.