Here are two websites with great information about Literature Reviews from other reputable writing centers and Universities.
Literature reviews (UNC)
Literature Reviews (CMU)
Here is a DIY consultation that we put together that goes through several questions and resources for different stages of the Literature Review process. You can use this set of slides to help guide your planning, writing, and editing phases, and you can return to and work through this DIY consultation as you progress through the different phases of your LIterature Review.