A dissertation literature review contributes 40 percent of the weight. Hence, more effort should be taken to collect exhaustive up-to-date literature that has been published from various countries or conducted among different ethnic groups. Thus, a researcher needs to collect relevant literature, including empirical, historical, philosophical literature related to a problem stated. A review of available literature is an important part of any academic dissertation. However, such task is challenging as you need to review thoroughly any published research on relevant theoretical concepts or models on which you intend to base your dissertation. You should compare and contrast the views and conclusions of a wide range of authors and add your views. It should be a 'critical' review and not just a regurgitation of the literature. Need to highlight the limitations or contentious aspects of particular studies you have read (for example, their theoretical underpinnings, research design or interpretation of findings) or identify gaps in the literature. For More Information:https://www.tutorsindia.com/our-services/coursework-writing/literature-review/ For Sample Work:https://www.tutorsindia.com/our-sample-works/extraterritoriality-effect-on-public-international-law/