- Author: Michael I. C. Nwogugu
- Language: English
- Year: 2019
- Author: Michael I.C. Nwogugu
- Language: English
- Year: 2019
- Author: Michael I. C. Nwogugu
- Language: English
- Year: 2018
- Author: Michael C. I. Nwogugu (auth.)
- Language: English
- Year: 2016
- Author: Michael I. C. Nwogugu
- Language: English
- Year: 2017