Henry, Orugba O., Okechukwu D. Onukwuli, Njoku N. Chigoziri, Ojebah C. Kelvin, and Nnanwube I.A. 2014. “PROCESS MODELING OF SULPHURIC ACID LEACHING OF IRON FROM OZORO CLAY”. European Scientific Journal, ESJ 10 (30). https://doi.org/10.19044/esj.2014.v10n30p%p.