Introgression of high protein and pest resistance genes from inter-specific hybrids of Manihot esculenta ssp flabellifolia into cassava (Manihot esculenta Crantz). Thesis (Ph.D.)
Msimu wa Kupanda : Targeting resources within diverse, heterogeneous and dynamic farming systems of East Africa. Thesis (Ph.D.)
Lablab Purpureus (L) Sweet: A promising multipurpose legume for enhanced drought resistance in smallholder farming -systems of eastern Kenya. M.Sc. Thesis (Sustainable International Agriculture, Specialization in Tropical Agriculture)