Finding sources (scholarly articles, research books, dissertations) for your literature review is part of the research process, a process that is iterative--you go back and forth along the process as new information is gathered and analyze until all necessary data is acquired and you are ready to write. The main steps in this research process are:
Planning: Before searching for articles or books, brainstorm to develop keywords that best describe your research question.
Searching: While searching take note of what other keywords are used to describe your topic and use them to do more searches
♠ Most articles include a keyword section
♠ Key concepts names may change through time so make sure to check for variations
Organizing: Start organizing your results by categories/key concepts or any organizing principle that make sense for you. This will help you later when you are ready to analyze your findings
Analyzing: While reading, start making notes of key concepts and commonalities and disagreement among the research articles you find.
♠ Create a spreadsheet document to record what articles you are finding useful and why.
♠ Create fields to write summaries of articles or quotes for future citing and paraphrasing.
Writing: Synthesize your findings. Use your own voice to explain to your readers what you learned about the literature your search; its weaknesses and strengths; what is missing or ignored
Repeat: at any given time of the process you can go back to a previous step as necessary
Many databases today have special featured that show you how many times an article was cited by and by who and offer you links to those articles.
See below some recommended resources: