Olagbende, O. T.; Ede, G. O.; Inyang, L. E. D.; Gundlach, E. R.; Gilfillan, E. S.; Page, D. S. (November 1999). "Scientific and Cleanup Response to the Idoho-Qit Oil Spill, Nigeria". Environmental Technology. 20 (11): 1213–1222. Bibcode:1999EnvTe..20.1213O. doi:10.1080/09593332008616920. ISSN0959-3330.
Olagbende, O. T.; Ede, G. O.; Inyang, L.E.D. (March 1999). "Rapid Operational and Scientific Response to the Idoho-Qit Pipeline Spill, Nigeria". International Oil Spill Conference Proceedings. 1999 (1): 731–735. doi:10.7901/2169-3358-1999-1-731. ISSN2169-3366.
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Olagbende, O. T.; Ede, G. O.; Inyang, L. E. D.; Gundlach, E. R.; Gilfillan, E. S.; Page, D. S. (November 1999). "Scientific and Cleanup Response to the Idoho-Qit Oil Spill, Nigeria". Environmental Technology. 20 (11): 1213–1222. Bibcode:1999EnvTe..20.1213O. doi:10.1080/09593332008616920. ISSN0959-3330.
Olagbende, O. T.; Ede, G. O.; Inyang, L. E. D.; Gundlach, E. R.; Gilfillan, E. S.; Page, D. S. (November 1999). "Scientific and Cleanup Response to the Idoho-Qit Oil Spill, Nigeria". Environmental Technology. 20 (11): 1213–1222. Bibcode:1999EnvTe..20.1213O. doi:10.1080/09593332008616920. ISSN0959-3330.
Olagbende, O. T.; Ede, G. O.; Inyang, L.E.D. (March 1999). "Rapid Operational and Scientific Response to the Idoho-Qit Pipeline Spill, Nigeria". International Oil Spill Conference Proceedings. 1999 (1): 731–735. doi:10.7901/2169-3358-1999-1-731. ISSN2169-3366.