Yield Response of Maize (Zea mays L.) and Sesame (Sesamum indicum L.) Intercrop as Influenced by Planting Densities and Varieties of Sesame at Makurdi, Nigeria

World Scientific News, Tom 37 (2016) s. 25-49
M.O. Ijoyah, J.O. Anyogo, F.D. Ugese