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Primary sources are also sets of data, such as health statistics, which have been tabulated, but not interpreted. 1  Journals or Periodicals: main type of publication in which scientific research is reported. 2  May be published by learned societies or by commercial publishers. 3  A researcher(s) submits an article to a journal.
Primary versus Secondary Sources. Primary Sources. Primary sources are original sources of information that have not yet been filtered through analysis, examination or interpretation. Typically, primary sources are contemporary to the events and individuals being researched. Primary sources differ both in content and format from discipline to discipline.