Zulkifli, Y. . S., Tahriani, R., Jibriel, D. ., & Swara , Y. P. W. (2015). Tinjauan Pustaka : Depresi Pada Lansia. Jurnal Kesehatan Ilmiah Indonesia (Indonesian Health Scientific Journal), 10(2). https://doi.org/10.51933/health.v10i2.2244