1. Matilda A. Ouma:
School of Agricultural and Food Sciences, Jaramogi Oginga Odinga University of Science and Technology, P.O. Box 210-40601, Bondo, Kenya
2. Luke O. Ouma:
Biostatistics Research Group, Population Health Sciences institute, Newcastle University, United Kingdom
3. Justus M. Ombati:
Department of Agricultural Education and Extension, Egerton University, P.O. Box 536 –20115, Egerton, Njoro, Kenya.
4. Christopher A. Onyango:
Department of Agricultural Education and Extension, Egerton University, P.O. Box 536 –20115, Egerton, Njoro, Kenya.