Firmansyah, Andan, Alya Andriani, Nurisriani Najamuddin, Suhanda, and Henri Setiawan. 2020. “RELATIONSHIP OF PARENTS ROLE WITH SOCIAL SKILLS OF MENTAL RETARDATION CHILDREN”. Pelita Health and Education Journal 1 (1), 1-5. https://journal.pelitamedika.org/index.php/pm/article/view/1.