van Dijk, Rijk (November 2001), "'Voodoo' on the Doorstep: Young Nigerian Prostitutes and Magic Policing in the Netherlands", Africa, 71 (4): 558–586, doi:10.3366/afr.2001.71.4.558, S2CID145384427
van Dijk, Rijk (November 2001), "'Voodoo' on the Doorstep: Young Nigerian Prostitutes and Magic Policing in the Netherlands", Africa, 71 (4): 558–586, doi:10.3366/afr.2001.71.4.558, S2CID145384427
van Heelsum, Anja; Hessels, Thomas (January 2006), "Nigerianen"(PDF), Afrikanen uit Angola, DR Congo, Ethiopië, Eritrea, Nigeria en Sudan in Nederland, Den Haag: Ministerie van Justitie, p. 80, OCLC150216568, archived from the original(PDF) on 9 January 2023, retrieved 9 January 2023
van Heelsum, Anja; Hessels, Thomas (January 2006), "Nigerianen"(PDF), Afrikanen uit Angola, DR Congo, Ethiopië, Eritrea, Nigeria en Sudan in Nederland, Den Haag: Ministerie van Justitie, p. 80, OCLC150216568, archived from the original(PDF) on 9 January 2023, retrieved 9 January 2023
van Heelsum, Anja; Hessels, Thomas (January 2006), "Nigerianen"(PDF), Afrikanen uit Angola, DR Congo, Ethiopië, Eritrea, Nigeria en Sudan in Nederland, Den Haag: Ministerie van Justitie, p. 80, OCLC150216568, archived from the original(PDF) on 9 January 2023, retrieved 9 January 2023