Reference materials provide good, working knowledge of key issues and sub-topics and provide ideas for other sources to explore. Beyond this list, you should know that all of the following types of materials can be helpful reference material for your research: almanacs, atlases, bibliographies, dictionaries, directories, encyclopedias, handbooks, and indexes.
A very useful source for primary source materials for Anthropology students is eHRAF World Cultures, a collection of full-text primary source materials on ca. 400 different cultural, ethnic, religious, and national groups in the following regions of the world: Asia, Europe, Africa, Middle East, North America, Oceania, Eurasia, and South America.
For guidance on research methodology please consider using Sage Research Methods
Other Amazing reference material: