1. Reviewof the Usage of E-learning Facilities by Economics Teachers in Eastern Cape Secondary Schools, South Africa
2. Ahmed, Mansur (2016). Catalysing investment in Northern Nigeria. Economic context for Northern Nigeria.
3. The myth of meeting needs in adult education and community development;P.Armstrong;Critical Social Policy,1982
4. Austin, J., Stevenson, H., & Wei‐Skillern, J. (2006). Social and commercial entrepreneurship: same, different, or both? Retrieved from http://www.scielo.br/pdf/rausp/v47n3/03.pdf
5. Bello-Schünemann, J. & Aucoin, C. (2016). African Urban Futures. Africaportal. Retrieved from https://www.africaportal.org/publications/african-urban-futures/