Sham, F. ., Y. . Yusoff, N. F. . Hassan Shukri, and J. Lee. “Perceived Social Support, Caregiving Appraisal and Quality of Life Among Caregivers of Individuals With Parkinson Disease”. Environment-Behaviour Proceedings Journal, vol. 7, no. 19, Mar. 2022, pp. 163-71, doi:10.21834/ebpj.v7i19.3132.