1.Primary sources are documents, images or artifacts that provide firsthand testimony or direct evidence concerning an historical topic under research investigation
2.
Secondary sources include peer-reviewed, scholarly articles that are published in academic journals, and are found in your course readings.
3.Primary sources can be described as those sources that are closest to the origin of the information. ... Secondary sources often use generalizations, analysis, interpretation, and synthesis of primary sources. Examples of secondary sources include textbooks, articles, and reference books.
4.primary:archives and manuscript material.
photographs, audio recordings, video recordings, films.
journals, letters and diaries.
secondary :Scholarly Journal Articles. Use these and books exclusively for writing Literature Reviews.
Magazines.
Reports.