There are a number of resources you can consult for your literature review:
Before you start searching the literature, it is important to develop a robust search strategy. This will assist in eliminating irrelevant results.
The following points outline the steps to follow:
Boolean operators are terms that help you to either narrow or broaden your searches in library catalogues and databases. They are the words 'AND', 'OR', 'NOT', typed between your search terms.
Narrows your search. Find results containing both of your terms.
For example, you would find resources containing both apples and oranges.
Broadens your search. Find results containing either one or both of your terms.
For example, you would find resources containing either apples or oranges, as well as those containing both terms.
Excludes a term from your search.
For example, you would exclude results containing the term oranges.