The rundown of sources like documents, appropriation work, references, books, and information, and so on which are used for research are termed as a commented on index. Commented on reference file not simply fuses the name of the sources used for research. It moreover fuses a brief depiction of these sources. Commented on book file essentially depicts the spot of discussion of a paper and how it adds to the development of an overall population. It might be termed as a critical outline of a research paper. It is continually kept fundamental and brief with the objective that readers can get the information and setting of a paper and research. Students ought to acknowledge how to write an autobiography and a commented on rundown of sources.