Udo, Godwin J., et al. “Concentrations of Monocyclic Aromatics Hydrocarbons: Benzene, Toluene, Ethylbenzene, and Xylene (BETX) in Gasoline Samples Distributed in Uyo, Niger Delta, Nigeria”. Researchers Journal of Science and Technology, vol. 3, no. 4, Dec. 2023, pp. 46-60, doi:10.83080/rejost.vol3no4.79.