Ogeh, J. S. and Ipinmoroti, R. R. (2013) “Micronutrient Assessment of Cocoa, Kola, Cashew and Coffee Plantations for Sustainable Production at Uhonmora, Edo State, Nigeria”, JOURNAL OF TROPICAL SOILS, 18(2), pp. 93–97. doi: 10.5400/jts.2013.v18i2.93-97.