**Author details**

Oluwole O. Durodolu1,2\* and Joseph M. Ngoaketsi1

1 Department of Information Science, University of South Africa, Pretoria, South Africa

2 University of Lagos Library, Lagos, Nigeria

\*Address all correspondence to: woledurodolu@gmail.com

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
