Adriani, D., Imran, Y., Mawi, M., Amani, P. and Ilyas, E. I. (2020) “Effect of Brain Gym ® exercises on cognitive function and brain-derived neurotrophic factor plasma level in elderly: a randomized controlled trial”, Universa Medicina, 39(1), pp. 34–41. doi: 10.18051/UnivMed.2020.v39.34-41.