Orejarena-Ballestas, María-Camila, Quiñonez-Pérez, Ana Milena, and Marín-Gutiérrez, Alejandro. 2017. “Cognitive Stimulation in Alzheimer Disease Patients: A Systematical Review”. Búsqueda 4 (19): 208-26. https://doi.org/10.21892/01239813.372.