« Śāntimāhātmya:kiṁvā sādhu Iyoba hyāceẽ ākhyāna / », Hebrew, Judeo-Arabic, and Marathi Jewish Printing in India Online, (DOI10.1163/9789004192621.hpi-411, lire en ligne, consulté le )
OKAKA et AKHIGBE, « Helminth parasites of some tropical freshwater fish from Osse River in Benin, southern Nigeria », Tropical Freshwater Biology, vol. 8, no 1, (ISSN0795-0101, DOI10.4314/tfb.v8i1.20861, lire en ligne)
(en) Zeinab Badawi, An African History of Africa: From the Dawn of Humanity to Independence, Ebury Publishing, (ISBN978-0-7535-6015-0, lire en ligne)
(en) Pauline von Hellermann, Things Fall Apart?: The Political Ecology of Forest Governance in Southern Nigeria, Berghahn Books, (ISBN978-0-85745-990-9, lire en ligne)
J.O. Ijoma, « Portuguese Activities in West Africa Before 1600 the Consequences », Transafrican Journal of History, vol. 11, , p. 136–146 (ISSN0251-0391, lire en ligne, consulté le )
OKAKA et AKHIGBE, « Helminth parasites of some tropical freshwater fish from Osse River in Benin, southern Nigeria », Tropical Freshwater Biology, vol. 8, no 1, (ISSN0795-0101, DOI10.4314/tfb.v8i1.20861, lire en ligne)
J.O. Ijoma, « Portuguese Activities in West Africa Before 1600 the Consequences », Transafrican Journal of History, vol. 11, , p. 136–146 (ISSN0251-0391, lire en ligne, consulté le )