« GEOCHEMICAL PROXIES FROM CLAYS IN PARTS OF NORTHERN NIGER DELTA: IMPLICATION FOR UNRAVELLING PALEOWEATHERING AND PALEO-REDOX CONDITIONS ». FULafia Journal of Science and Technology 6, no. 1 (mars 31, 2020): 6–14. Consulté le mai 17, 2026. https://lafiascijournals.org.ng/index.php/fjst/article/view/161.