Azizah, L., Martiana, T. and Soedirham, O. (2017) “The Improvement of Cognitive Function and Decrease the Level of Stress in the Elderly with Brain Gym”, INTERNATIONAL JOURNAL OF NURSING AND MIDWIFERY SCIENCE (IJNMS), 1(1), pp. 26-31. doi: 10.29082/IJNMS/2017/Vol1/Iss1/33.