critical literature review is NOT just some background information. Nor is it simply a summary of some published sources on the topic that you happened to find. You need to be systematic in your search for relevant material and you need to know the subject you read for critical analysis. Further information on what this means and how to go about it can be found by reading the relevant pages 100-105 in Collis and Hussey (2009). If you want good marks make sure you read this well before the deadline. Note also that a literature review usually takes much longer than most assignments of the same length so do not leave the preparation close to the deadline start the search for materials early.