Ng'ethe, N., Subotzky, G., & Afeti, G. (2008). Differentiation and articulation in tertiary education systems: A study of twelve African countries. The World Bank.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNg'ethe, Njuguna, G. Subotzky, এবং George Afeti. Differentiation and Articulation in Tertiary Education Systems: A Study of Twelve African Countries. Washington, DC: The World Bank, 2008.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিNg'ethe, Njuguna, et al. Differentiation and Articulation in Tertiary Education Systems: A Study of Twelve African Countries. The World Bank, 2008.
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