This document discusses the review of related literature and studies portion of a research paper. It defines conceptual literature as non-empirical sources like books and journalism, while research literature refers to empirical studies from published and unpublished local and foreign sources. The purpose of a literature review is to avoid duplication, guide theoretical frameworks, and inform research design choices. A good review uses current, relevant sources and objectively scrutinizes data to allow generalizations. Sources can include theses, books, websites and dictionaries.