Tertiary sources compile, summarize, index, or help identify scholarly sources on a topic. They are useful for background research or to get an overview of a topic before delving into secondary or primary sources. Common tertiary sources for international affairs include dictionaries, encyclopedias, handbooks, and other reference sources.
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eBooks in most humanities disciplines and in area studies with access to full text and full page images.
Includes full text of a variety of Gale reference sources.
According to a study conducted by pharmaceutical companies and published in the Journal of Sexual Medicine, headache was the most common side effect among patients taking Kamagra.
