Não informado. Quarterly economic review of Sudan. Economist Intelligence Unit.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Quarterly Economic Review of Sudan. London: Economist Intelligence Unit.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Quarterly Economic Review of Sudan. Economist Intelligence Unit.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.