Okonkwo CJ, Dada EO, Njoku KL. EFFECTS OF VERMICAST TEA ON THE REMEDIATION OF SPENT ENGINE OIL CONTAMINATED SOIL. FJS [Internet]. 2023 Sep. 4 [cited 2025 Oct. 29];7(4):95-102. Available from: http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/1871