"PALYNOZONATION AND PALEO DEPOSITIONAL ENVIRONMENT OF EOCENE-OLIGOCENE SEDIMENTS OF NORTHWESTERN NIGER DELTA BASIN IN NIGERIA" (2020) FULafia Journal of Science and Technology, 6(2), ص 11–19. موجود في: https://lafiascijournals.org.ng/index.php/fjst/article/view/140 (تاريخ الوصول: 17 مايو 2026).