SCREENING INFORMATION OR STEPS :

Some of  the references identified may not be relevant, readers  can usually judge  the  relevance  of the  reference quickly based  on abstract or a brief perusal of the introduction. Preferably, review relies on primary source research reports, which  are description of  the studies written-by researches who conducted them. Secondaq-  source research articles are description  of studies prepared by someone other than researcher. For example, literature review  in  secondary source. Preferably, written literature review should be  based on primary sources, because secondary description may  distort some aspects of research since author may not  be  completely objective in evaluating the study. Abstracting  and  organizing review: Afier  screening the  important references, notes should  be  taken with complete information on full citation, problem statement or hypothesis, method  and procedure and the results  and  conclusions, etc. Then organize the material based  on  priority of  significance.  

It  is  essential  to  organize the findings from studies in a summary table. Copy the exact reference as you would have written  and  the library from where you obtained the material.