A. Arbianingsih, H. Huriati, S. Musnayni, N. Afiifah, and A. A. Amal, “Brain Gym Effectively Reduces Anxiety in School- and Preschool-Aged Children in Hospitals”, Jurnal Keperawatan Indonesia, vol. 24, no. 3, pp. 140–148, Nov. 2021.