I. K. Nasution, D. A. Daulay, A. R. Siregar, R. P. Rangkuti, R. Yurliani, and L. Marini, “Increasing Psychological Well-Being in Children with Chronic Illness through Social Support Intervention in Haji Adam Malik Hospital, Medan Tuntungan”, J.Saintech Transf., vol. 1, no. 2, pp. 116-120, Apr. 2019.