Anyanwu, Timothy, Bassey Ekpo, and Boniface Oriji. “Biomarker Application in the Recognition of the Geochemical Characteristics of Crude Oils from the Five Depobelts of the Niger Delta Basin, Nigeria”. Iranian Journal of Earth Sciences 14, no. 1 (May 17, 2021): 1–17. Accessed May 11, 2026. https://oiccpress.com/ijes/article/view/5341.