Henry, Orugba O., Okechukwu D. Onukwuli, Njoku N. Chigoziri, Ojebah C. Kelvin, and Nnanwube I.A. “PROCESS MODELING OF SULPHURIC ACID LEACHING OF IRON FROM OZORO CLAY”. European Scientific Journal, ESJ 10, no. 30 (October 30, 2014). Accessed January 31, 2026. https://last.eujournal.org/index.php/esj/article/view/4458.