CEVAP:

There are three types of sources of information: primary, secondary, and tertiary sources.

1. Primary sources. The person presenting the data is actually present in primary sources (Anderson, 2005, 12). Original written works such as poems, diaries, court records, interviews, surveys and original research/fieldwork and research published in scholarly journals (http://libguides.merrimack.edu/research_help/Sources).

2. Secondary sources. When the data is reported from another author or source who is not present at the work cited, it is called secondary data (Anderson, 2005, 12). In other words, secondary sources are those which narrate and examine the primary sources/original research (http://libguides.merrimack.edu/research_help/Sources).

3. Tertiary sources. These kinds of sources organize and locate secondary and primary source. They can be summarized as follows

• Indexes – provide citations that fully identify a work with information such as author, titles of a book, article, and/or journal, publisher and publication date, volume and issue number and page numbers.

• Abstracts – summarize the primary or secondary sources

• Databases – are online indexes that usually include abstracts for each primary or secondary resource, and may also include a digital copy of the resource.