?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Joseph%2C+Ejemen+Rachael&rft.aufirst=Ejemen+Rachael&rft.aulast=Joseph&rft.date=2021&rft.title=NIGERIAN+MARGINAL+OILFIELD+DEVELOPMENT+IN+LIGHT+OF+PETROLEUM+PROFIT+TAX+%26+PETROLEUM+INDUSTRY+ACT&rft.degree=Masters&rft.inst=Covenant+University+Ota.