Hicks, Michael (2004). "Elizabeth (c.1437–1492)"Arxivləşdirilib 2023-07-08 at the Wayback Machine. Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/8634. Retrieved 25 September 2010.
Hicks, Michael (2004). "Elizabeth (c.1437–1492)"Arxivləşdirilib 2023-07-08 at the Wayback Machine. Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/8634. Retrieved 25 September 2010.