The review of related literature systematically identifies, locates, and analyzes documents containing information related to a research problem. It provides benefits such as obtaining ideas from other researchers and learning results from other studies. The purposes of reviewing related literature is to understand what has already been done in the field, provide a logical framework and foundational knowledge, and avoid replicating past research by profiting from other experiences and approaches.

1. REVIEW OF RELATED LITERATURE What and What For?

2. What is it? Definition : The systematic identification, location, and analysis of document containing information related to research problem(Gay, 1987)

3. What do we get? Benefits : Obtain the ideas of other researchers. Get the result of other studies.

4. What is it for? The purposes : What has been done? Provide understanding for a logical framework Provide foundation of knowledge Provide detailed knowledge Avoid replication

5. What needs to be done? Avoid mistake and profit from other experiences Aware of research of possibilities Provide a new approaches for significant improvement of research design.

6. What if... There is a lack of research -> increases the worth of the study So many studies have been done in the particular area -> there is still further need for research in that area THANK YOU