Please completely and critically answer and write These questions Why write a literature review?Develop the bibliography for Title : Brand loyalty in the age of social media : comparative analysis$$dissertation$.$ How is a bibliography different from a list of references?Explain with a step$-$by$-$step approach how will you research your literature.Please list at least $15$ academic or professional sources that are relevant to the selected research topic.What is the EBSCOhost and how you can use it for your research?Demonstrate the Harvard Reference System for different sources.