An essential part of any research paper, the literature review is an integrative analysis of several works on a particular topic. It provides background information on why the data you've collected is important. Rather than standalone paragraphs, each summarizing a separate resource, literature reviews should be organized thematically.
You want to include 5 sources in your literature review, focusing on 3 central themes. Instead of writing 5 paragraphs, one for each source, you'll write 3 paragraphs, one for each theme. You won't write about one source only one time; you'll revisit each source multiple times in multiple paragraphs, connecting your sources to one another through their shared themes. Your paragraph structure might look something like this:
Your literature review should be theme-driven, not author-driven.
Cisco, J. (2014). Teaching the literature review: A practical approach for college instructors. Teaching & Learning Inquiry, 2(2), 41-57. Retrieved from https://eric.ed.gov/?id=EJ1148690
UC Santa Cruz. University Library. (n.d.). Write a literature review. Retrieved August 7, 2019, from https://guides.library.ucsc.edu/write-a-literature-review
University of West Florida. University Libraries. (2019, March 19). Literature review: Conducting & writing. Retrieved August 7, 2019, from https://libguides.uwf.edu/litreview
Mogasale, V., Ramani, E., Mogasale, V. V., & Park, J.Y. (2016). What proportion of Salmonella Typhi cases are detected by blood culture? A systematic literature review. Annals of Clinical Microbiology and Antimicrobials, 15(32), 1-8. https://doi.org/10.1186/s12941-016-0147-z
Nguyen, T. N. A., Anton-Le Berre, V., Bañuls, A.-L., & Nguyen, T. V. A. (2019). Molecular diagnosis of drug-resistant tuberculosis: A literature review. Frontiers in Microbiology, 1-12. https://doi.org/10.3389/fmicb.2019.00794