http://documentos.una.ac.cr/handle/unadocs/13318 Sat, 18 Apr 2026 10:44:15 GMT 2026-04-18T10:44:15Z http://documentos.una.ac.cr/handle/unadocs/13322 Perfiles 26 y 27 Tue, 20 Apr 2021 00:00:00 GMT http://documentos.una.ac.cr/handle/unadocs/13322 2021-04-20T00:00:00Z