Conceptual Literature
This is about all the information that you can get from different sources like books, journals, magazines, other researches about your research topic. It is very important to find other researches made in the same or related topic that you are working on.
Example, if you are working on the disadvatages and advantages of living in NU dorm, your literature review has something to do with university dormitories. What is the function or purpose of university dormitories; why is it created; what are the things that need to be in the dorm; how can students feel at home in the university dorm; safety in the dorm. Those things must be in the conceptual literature.
If you have questions, feel free to visit me anytime in my office, Room 311.