Alexander Chidiebere Okoro, Louis Chukwuemeka Orakwe, Chike Pius Nwachukwu, Ella Ifeanyi Ugwu, Elijah Chibuzo Ugwu, Kenneth Eze, & Chukwuemeka Obumneme Umobi. (2025). Optimum Value for Zinc Removal from Saponin-Based Soil Washing Across soils at Onyeama Dumpsite, Enugu State. Greenation International Journal of Engineering Science, 3(2), 74–85. https://doi.org/10.38035/gijes.v3i2.545