1. Entre-Douro-e-Minho (in Portuguese);Ribeiro;Rev. DA Fac. Let. - Geogr. III,1987
2. O. Ribeiro, Portugal, the Mediterranean and the Atlantic (in Portuguese), Coimbra Editora, Coimbra, 1945. 〈http://purl.pt/421〉 (accessed 18 March 2013).
3. E.A.L. Bastos, E. de Barros, Inquiry into Rural Housing (in Portuguese), 1a, Universidade Técnica de Lisboa, Lisboa, 1943.
4. E.V. de Oliveira, F. Galhano, Portuguese Traditional Architecture (in Portuguese), 4a, Publicações Dom Quixote, Lisboa, 1992.
5. C. Saraiva, Contrasts of the Alto Minho: The riverside and the mountain range (in Portuguese), Cad. Vianenses 173–192. 〈http://gib.cm-viana-castelo.pt/documentos/20080808153644.pdf〉 (accessed 13 May 2013).