“THE EFFECTIVENESS OF BRAIN GYM AND MEMORY GAMES NURSING THERAPY ON THE COGNITIVE ABILITIES OF THE ELDERLY AT THE ELDERLY POSYANDU, SIDOSERMO COMMUNITY HEALTH CENTER, SURABAYA”. ANJI: Applied Nursing Journal of Indonesia, vol. 3, no. 1, Mar. 2026, pp. 20-32, https://e-journal.aipviki.org/index.php/anji/article/view/172.