OSAYI, E. E.; OBAREGWU, C. N.; AMUJIRI, A. N.; NWEZE, A. E.; OSAYI, N. H.; UGWU, B. C. Evaluation of the phytoremediation potential of Gmelina arborea Roxb. Seedlings on spent engine oil-stressed soil. The Bioscientist Journal, v. 14, n. 1, p. 57-74, 20 Mar. 2026.