Please i need some literature reviews on the effect of acoustic and semantic similarity in STM retention...?

You first have to define terms for your paper. You will have to do the research and then summarize the findings. Then, you create the bibliography assuming you use APA form. Without the journal articles in hand, no one can do the task. How to find them is to go to your university without delay, and make the copies. Sometimes, you can see the journal and copy it, and other times, it is on a data base. In order to understand the articles, you have to be able to have some knowledge of statistics, the skills to evaluate the validity of the findings and their relevance to your topic.