^Albuquerque Luís, Dicionário de história dos descobrimentos Portugueses (Dictionary of History of Portuguese Discoveries), Lisbon, Círculo de Leitores
'^Serrão, Joel (1963), "Afonso Diogo", Dicionàrio de História de Portugal (Dictionary of the History of Portugal), 1st ed, Torres, Ruy d'Abreu, Lisbon, Iniciativas Editoriais. p. 49
^François Angelier, Dictionnaire des Voyageurs et Explorateurs occidentaux (Dictionary of Western Voyages and Explorers), Pygmalion, 2011, p. 30
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