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 Industrial and Systems Engineering include handbooks and similar resources.
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Handbooks - If you're not familiar with the topic, consider checking a handbook before doing research for a project or term paper. Topics covered are typically summaries. You'll get ideas for key words, phrases, and concepts that you can use in your searches.
Maynard's Industrial and Systems Engineering Handbook, Sixth Edition by 
Juran's Quality Handbook: the Complete Guide to Performance Excellence, Seventh Edition by 
