(1)
Gideon, I. .; Ogbonna, A. .; Nzegbule, E. . Soil Physico-Chemical Properties in Three Land Use Systems (Theobroma Cacao, Gmelina Arborea and Secondary Forest) in Umuahia North of Abia State, Nigeria. Ca J Agri Crop 2016, 1, 19-29.