- 
    
      Conducting Empirical Research with Map-Based Data: A Geographical Option.I. V. O, Modo (ed) Orientation and Research Methods – A Book of Readings, Cultural Research Publishers, Isele Uku, Nigeria
- 
    
      An Empirical Research on Covid-19 Pandemic as a threat to human health: A...World Atlas International Journal of Education and Management, New York City.