Yuliastati, Yuliastati, Camalia Suhertini Sahat, Sri Kusmiati, and Atik Hodikoh. “The Effect of Peer Support Group (PSG) on Stress Levels of Parents With Mental Retardation Children in Bogor”. International journal of health sciences 7, no. S1 (December 22, 2023): 3018–3030. Accessed July 22, 2024. https://sciencescholar.us/journal/index.php/ijhs/article/view/14674.