ONOJAKE, M. C.; OGBOLE, S. N.; OSAKWE, J. O.; IWUOHA, G. N. USE OF PULVERIZED OYSTER AND SNAIL SHELLS IN THE REMOVAL OF HEAVY METALS FROM HYDROCARBON CONTAMINATED SOILS. Journal of Global Ecology and Environment, v. 12, n. 1, p. 35-43, 16 jul. 2021.