Please view the following websites.
Mary Church Terrell: http://36147010.nhd.weebly.com/
Nikita Khrushchev: http://60373783.nhd.weebly.com/
Nelson Mandela: http://97768587.nhd.weebly.com/
Robert F. Kennedy: http://69653872.nhd.weebly.com/
Abraham Lincoln: http://31306701.nhd.weebly.com/
Ronald Reagan and Mikhail Gorbachev: http://85049531.nhd.weebly.com/
You must have at least 9 sources. Website are good but look for one or more sources other than a website such as a book or person to interview.
Seven questions to ask about your topic
Source: 100leaders.org website
Source: Josh Arnold