(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
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
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