Okunoye, Oyeniyi. In Arana, Victoria R., ed. The Facts On File Companion to World Poetry, 1900 to the Present. New York: Facts On File, Inc., 2008. Bloom's Literature. Facts On File, Inc. Web. 9 Feb. 2016.
Diamond, Marie Josephine, ed. Encyclopedia of World Writers, 1800 to the Present. New York: Infobase Publishing, 2011. Bloom's Literature. Facts On File, Inc. Web. 9 Feb. 2016.
Okinoye, Oyeniyi. In Arana, Victoria R., ed. The Facts On File Companion to World Poetry, 1900 to the Present. New York: Facts On File, Inc., 2008. Bloom's Literature. Facts On File, Inc. Web. 9 Feb. 2016.
Okunoye, Oyeniyi. In Arana, Victoria R., ed. The Facts On File Companion to World Poetry, 1900 to the Present. New York: Facts On File, Inc., 2008. Bloom's Literature. Facts On File, Inc. Web. 9 Feb. 2016.
Olsen-Fazi, Annette. In Arana, Victoria R., ed. The Facts On File Companion to World Poetry, 1900 to the Present. New York: Facts On File, Inc., 2008. Bloom's Literature. Facts On File, Inc. Web. 9 Feb. 2016.