VALAREZO GARCIA, C. L. Elderly: From a "biological-social" old age to a "new" productive aging. Maskana, [S. l.], v. 7, n. 2, p. 29–41, 2016. DOI: 10.18537/mskn.07.02.03. Disponível em: https://publicaciones.ucuenca.edu.ec/ojs/index.php/maskana/article/view/1048. Acesso em: 17 may. 2024.