Primary Sources are immediate, first-hand accounts of a topic, from people who had a direct connection with it.
Examples of primary sources:
Theses, dissertations, scholarly journal articles (research based), some government reports, symposia and conference proceedings, original artwork, poems, photographs, speeches, letters, memos, personal narratives, diaries, interviews, autobiographies, and correspondence.
https://crk.umn.edu/library/primary-secondary-and-tertiary-sources
Explore this Library Guide for more on Primary Sources