Ifediegwu, M. C.; Uba, B. O.; Awari, V. G.; Chukwujekwu, A. G.; Akaun, I. P. Post-Reclamation Evaluation of Residual Hydrocarbons in Crude Oil Contaminated Soil Using Gas Chromatographic Techniques and Plant Growth Indices. J Pol Monit Eval Stud Contr 2023, 2, 15-29.