(1998). Africa review: The world of information : the economic & business report (21 ed.). Walden publishing ltd..
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিAfrica Review: The World of Information : The Economic & Business Report. 21 ed. United Kingdom: Walden publishing ltd., 1998.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিAfrica Review: The World of Information : The Economic & Business Report. 21 ed. Walden publishing ltd., 1998.