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. a.a [Internet]. 2026 Mar. 13 [cited 2026 Mar. 29];3(1):20-32. Available from: https://e-journal.aipviki.org/index.php/anji/article/view/172