D. B. Motilewa, A. S. Ibidunni, R. Worlu, C. L. Moses, J. Obi, and J. Dirisu, “Influence of ecological protection on the corporate image of oil and gas firms in Nigeria”, BTP, vol. 20, pp. 19–24, Jan. 2019, doi: 10.3846/btp.2019.03.