17 St. 28 Min, 1 Sept 1975 Jahr - Bibliography of 1960-1975 (Victoria H.)
History.com
combatgenocide.com
blackpast.org
history guy.com
Bibliography of 1994-2001 (Brynn B.)
https://www.scribd.com/mobile/doc/264261242/timeline-nigerian-civil-war
http://www.refworld.org/docid/3ae6a6bf8.html
https://www.bbc.com/news/world-africa-13951696
https://books.openedition.org/ifra/653?lang=en
Bilbliography of 2006-2017 (Sydney S.)
https://www.bbc.com/news/world-africa-13951696
https://en.wikipedia.org/wiki/Timeline_of_Nigerian_history