Marietta Gargatagli, M. Historia de la Escuela de Traductores de Toledo.Universitat Autònoma de Barcelona. Facultat de Traducció i d’Interpretació[1]Архивирано на сајту Wayback Machine (28. септембар 2007), Приступљено 9. 4. 2013.
García Fitz, Francisco (2010). Rogers, Clifford J.; Caferro, William; Reid, Shelley, ур. The Oxford Encyclopedia of Medieval Warfare and Military Technology (на језику: енглески). Oxford University Press. стр. 325—326. ISBN978-0-19-533403-6. „Barely eight years after the initial crossing of the Straits of Gibraltar, the Muslims had come to dominate almost the entire Peninsula with the exception of a few northern mountainous regions along Cantabrian and Pyrenean ranges. In these areas, indigenous populations, including the Asturians, Cantabrians, and Basques, who had been brought under Visigothic control, were able to escape Islamic domination.”
Reilly, Bernard F. (1993). The Medieval Spains (на језику: енглески). Cambridge University Press. стр. 139. ISBN9780521397414. Архивирано из оригинала 4. 8. 2020. г. Приступљено 11. 10. 2019. „The new kingdom of Castile had roughly tripled in size to some 335,000 square kilometers by 1300 but, at the same time, its population had increased by the same factor, from one to three millions, so that the average density remained steady at about 8.5 persons per square kilometer.”CS1 одржавање: Формат датума (веза)
Reilly, Bernard F. (1993). The Medieval Spains (на језику: енглески). Cambridge University Press. стр. 139. ISBN9780521397414. Архивирано из оригинала 4. 8. 2020. г. Приступљено 11. 10. 2019. „The new kingdom of Castile had roughly tripled in size to some 335,000 square kilometers by 1300 but, at the same time, its population had increased by the same factor, from one to three millions, so that the average density remained steady at about 8.5 persons per square kilometer.”CS1 одржавање: Формат датума (веза)
Marietta Gargatagli, M. Historia de la Escuela de Traductores de Toledo.Universitat Autònoma de Barcelona. Facultat de Traducció i d’Interpretació[1]Архивирано на сајту Wayback Machine (28. септембар 2007), Приступљено 9. 4. 2013.