"GEOENVIRONMENTAL ASSESSMENT OF TOTAL PETROLEUM HYDROCARBON CONTENT IN OLOGBO FIELD, NIGER DELTA, NIGERIA" (2019) FULafia Journal of Science and Technology, 5(1), ص 41–47. موجود في: https://lafiascijournals.org.ng/index.php/fjst/article/view/218 (تاريخ الوصول: 17 مايو 2026).