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Sources cited

The following are sources cited in this tutorial:

1. Kate L. Turabian and Wayne C. Booth, A Manual for Writers of Research Papers, Theses, and Dissertations: Chicago Style for Students and Researchers (Chicago: The University of Chicago Press, 2013), 135.

2. Carson, D. A. How Long, O Lord?: Reflections on Suffering and Evil. Grand Rapids: Baker Academic, 2006.

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Plagiarism Detection Tools

There are a number of websites that you can use to check a course paper for unintentional plagiarism. Please note that most free options for plagiarism detection software often have word count limitations.


Viper is a widely used plagiarism detection program. After registering with Viper and downloading the program, you can scan documents of up to 5,000 words. Note that any essays submitted to Viper will be saved in their repository, and can be made available for viewing on other student support websites. There are free and premium options for Viper.


DupliChecker allows you to check up to 1,000 words of text. In order to run multiple scans, you need to register with DupliChecker. Registration is free.


Plagium allows you to check up to 5000 characters of text. In order to check more than this, you will need to register with Plagium and purchase credits.