DÍAZ-SÁNCHEZ, R.; ROLDÁN-RAMÍREZ, E. L.; VARGAS, C. A. Formal and informal social support networks for poverty reduction of the elderly and their family. Salud UIS, [S. l.], v. 55, 2022. DOI: 10.18273/saluduis.55.e:23004. Disponível em: https://revistas.uis.edu.co/index.php/revistasaluduis/article/view/12162. Acesso em: 24 aug. 2024.