Let’s return to our sample research question, above.
Suppose your assignment requires you to write four pages using four sources to answer this question. One source per written page is a lot, so not all of the sources must be long or in-depth. A reference source will help you define the terms and possibly even list some examples (i.e. car manufacturing robots, customer service response systems, self-checkout systems). Beyond this, you will need to consider which sources are the most interesting to you and best address your research question.