Yusuf A, Bahiyah K, Ola YB. Group Activity Therapy (Gat) Socialization Session 6 Increase Socialization Ability on Child of Mental Retardation. J. Ners [Internet]. 2017 Jul. 23 [cited 2024 Nov. 24];3(2):115-20. Available from: https://e-journal.unair.ac.id/JNERS/article/view/4992