^Girma Beshah and Merid Wolde Aregay, The Question of the Union of the Churches, pp.14.
^O. G. S. Crawford (editor), Ethiopian Itineraries, circa 1400 – 1524 (Cambridge: the Hakluyt Society, 1958), pp. 12f.
Thư mục
Armstrong, Edward (1964). “The Papacy and Naples in the Fifteenth Century”. Trong Previte-Orton, C.W.; Brooke, Z.N. (biên tập). The Cambridge Medieval History: The Close of the Middle Ages. VIII. Cambridge at the University Press.
Bisson, T.N. (1991). The Medieval Crown of Aragon. Oxford University Press.
Grierson, Philip; Travaini, Lucia (1998). Medieval European Coinage: Volume 14, South Italy, Sicily, Sardinia. Cambridge University Press.
Widmayer, Jeffrey S. (2006). “The Chronicle of Montpellier H119: Text, Translation and Commentary”. Trong Kooper, Erik (biên tập). The Medieval Chronicle IV. Rodopi. ISBN978-90-420-2088-7.
Spremić, Momčilo (2005). Balkanski vazali kralja Alfonsa Aragonskog [Balkan vassals of King Alfonso of Aragon]. Beograd: Prekinut uspon.