In Google / Google Scholar / Google Books:
Search for the topic plus the words “primary source*” or sources
Or search for the topic plus a word that indicates a primary source, such as diary, interview, correspondence, interview, speech, to name a few.
TIP: Use Google Advanced Search to execute your search.
Advanced search is a powerful feature that allows users to refine their search results based on specific criteria.
You can also narrow your results using the bottom section of the search screen. Ways to narrow your results include: Language, Region, Last Update, Site or Domain, Terms Appearing, File Type and Usage Rights.
