Bashiru M. Koroma
Department of Chemistry and School of Postgraduate Studies, Njala Campus, Njala University, Sierra Leone
Department of Agricultural Economics, School of Social Sciences, Bo Campus, Njala University, Sierra Leone
Alhaji Brima Gogra
Department of Chemistry, School of Environmental Sciences, Njala University, Njala and Bo, Sierra Leone.
Musa Aziz Yokie
Department of Physics and Computer Sciences, School of Technology, Njala University, Njala and Bo, Sierra Leone.
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