Primary source

A primary source gives you original research that is presented for the first time. In other words new findings and theories.

See the following examples:

An article in a newspaper written by a journalist or freelance writer who was present at that specific event and is now writing about and describing what has happened.

Journals that publish latest or new findings.

Secondary source

A secondary source does not present new information or research, but provides information or evaluations of previously presented research.

See the following examples:

Encyclopaedias

Review articles