Svinurai, Walter; Hassen, Abubeker; Tesfamariam, Eyob Habte; Ramoelo, Abel; Cullen, Brendan(NISC (Pty) Ltd and Informa UK Limited (trading as Taylor & Francis Group), 2021)
Ogbazghi, Zekarias M.; Tesfamariam, Eyob Habte; Annandale, John George; De Jager, Pieter Christiaan(American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2015-03)