Primary sources are materials that provide direct evidence or firsthand testimony concerning the period or subject under investigation. The definition of a primary source may vary depending upon the discipline or context. Examples include:
Secondary sources interpret or analyze an event or subject. Examples of secondary sources are biographies and journal articles written well after the event or time period under investigation.
BU's African Studies Library have significant primary resource materials related to cultural, linguistic & social anthropological works in Africa This include:
Some are digitized and are available online and many others are kept in folders with the possibility of digitization as needed.