provide a brief orientation to the topic and the major sections of the literature review

Introduction
– provide a brief orientation to the topic and the major sections of the literature review
(Subsections with Heading)
– patterns of findings, gaps in findings, research methods, sampling strategies, applications
Synthesis of the Study
– summarizing key findings and pointing out the need for the research (or the research gap)
I attached some guidelines and references. I also attached my review of related literature. I only need from you is the three ( Introduction. Subsections and the Synthesis. Thank you.