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. (2026). ANJI: Applied Nursing Journal of Indonesia, 3(1), 20-32. https://e-journal.aipviki.org/index.php/anji/article/view/172