Twinomurinzi, Hossana; Zwane, Mphikeleli Gabriel; Debusho, Legesse Kassa(Learning Information Networking and Knowledge (LINK) Centre, Graduate School of Public and Development, 2012)
Debusho, Legesse Kassa(South African Society of Crop Production/ Soil Science Society of South Africa/ Southern African Weed Science Society/ Southern African Society for Horticultural Sciences, 2008)