1. Landmark University,Industrial Chemistry Programme,Department of Physical Sciences,Omu-Aran,Kwara State,Nigeria
2. Landmark University,College of Agricultural Sciences,Omu-Aran,Kwara State,Nigeria
3. Ladoke Akintola University of Technology,Department of Pure and Applied Chemistry,Ogbomoso,Kwara State,Nigeria
4. University of Ilorin,Department of Industrial Chemistry,Iloirn,Kwara State,Nigeria
5. CSIR – Indian Institute of Chemical Technology,Department of Energy & Environmental Engineering,Hyderabad,India,500 007