http://www.africaguide.com/culture/tribes/ibo.htm
http://ayjw.org/articles.php?id=822974
http://www.encyclopedia.com/topic/Igbo.aspx
http://www.qub.ac.uk/imperial/nigeria/origins.htm
http://www.rebirth.co.za/Igbo_tribal_art_history_and_culture.htm
http://www.everyculture.com/wc/Mauritania-to-Nigeria/Igbo.html
http://www.kwenu.com/igbo/igbowebpages/Igbo.dir/Culture/culture_and_socialization.html