National Assembly of Angola (27 July 2011). "Lei n.º 29/11 de 1 de Setembro - Alteração da Divisão Político-Administrativa das províncias de Luanda e Bengo" [Law to change the politico-administrative divisions of Luanda and Bengo provinces] (PDF) (in Portuguese). IPGUL 'Noticias'. Retrieved 20 March 2012. While the law had been voted on July 27, 2011, its effective date is 60 days after publication in the Official Journal, which happened on September 1, 2011.
"Luanda" (in Portuguese). Luanda, Angola: Info-Angola. 2013. Archived from the original on 6 November 2013. Retrieved 26 December 2013.
