(原始内容存档于2010-12-25). See Joseph Miller, Way of Death: Merchant Capitalism and the Angolan Slave Trade, London & Madison/Wis,: James Currey & University of Wisconsin
ANGOP. angop.ao. [2022-05-14]. (原始内容存档于2020-01-11). John Marcum, The Angolan Revolution, vol. I, The Anatomy of an Explosion (1950–1962), vol. II, Exile
ISBN 9789027252555. The Genesis and Development of Brazilian Vernacular Portuguese (页面存档备份,存于互联网档案馆) Page 246, etc Lıngwa u lıngwıstıka. Borg, Karl. Valletta