(PDF)存档于2012-11-10) Marleau, Robert; Montpetit, Camille, House of Commons Procedure and Practice, Ottawa: Queen's Printer for Canada, 2000 [2017-01-11], ISBN 2-89461-378-4
(原始内容存档于2018-04-24). Angola: Migration Service to Speed Up Visa Exemption Procedure. [2019-04-19]. (原始内容存档于2018-03-30). Africa: Angola Offers Visa On Arrival
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And The European Bank For Reconstruction And Development In Respect Of Cooperation Outside The European Union (PDF). European Investment Bank. [2021-11-26]