Primary sources can take many forms. Sometimes a source can be used as either a primary source or a secondary source dependent on the subject under study and how the researcher intends to use the source.
ORIGINAL DOCUMENTS (excerpts or translations acceptable):
CREATIVE WORKS:
RELICS OR ARTIFACTS:
Primary sources are not necessarily free from bias. A source may actually be inaccurate. It may be wanting for authority as well. Think like a historian when interacting with primary sources.
How can I be sure I am using a primary sources?
Trying to figure out whether something is a primary or secondary source can be difficult at times. For tips, visit this useful website from Yale University. It will help in figuring out such things as whether a book is a secondary or primary source.