N. P. D. Anantari, I. P. Astrawan, and K. T. A. Suparwati, “The Effect Of Brain Gym On Cognitive Function In The Elderly In Banjar Belaluan Sadmerta Dangin Puri Kauh Village North Denpasar District”, JKF, vol. 5, no. 1, pp. 36–41, Oct. 2022.