Wikipedia is a great resource for getting general info about something, but because anyone can contribute or change its content, it is sometimes considered unreliable. It is a good place to start your research, but it is best to double check what you find against other sources.
Reference resources (encyclopedias, dictionaries, etc.) can provide a general overview of a topic and help identify synonyms, related terms, or basic data; these sources often include references and lists of further readings. Additionally, these resources have typically gone through an editorial process to check for accuracy.
The Oxford Encyclopedia of Islam and Women
Berkshire Encyclopedia of World History
Encyclopedia of the Stateless Nations
The Oxford Encyclopedia of the Islamic World
Encyclopedia of the Modern Middle East and North Africa
International Encyclopedia of the Social and Behavioral Sciences
Encyclopedia of Activism and Social Justice
Encyclopedia of Human Rights
The Grove Encyclopedia of Islamic Art and Architecture