Okta Viana Boangmanalu; Seapril S G Manurung; Oktaviani Simbolon; Riris Simatupang; Rejeki Sitanggang; Masito Anggini Magdalena P; Reza Fahlevi Marbun. Pelayanan Konseling Bagi Lansia Di Panti Jompo Siborong-Borong. Journal of Cross Knowledge 2023, 1, 207-218.