Yes you can get a number of samples of research proposal for literature. I have also done a research paper currently in my institute. I got research proposal sample from 'Jstore" and I also suggest you that if you can access "Jstore" then it is the best tool to get your sample research proposal and also to get base article from there. Moreover, a research proposal usually include abstract without findings, data methodology, data collection techniques, benefits of study, research objectives, research design introduction, assumptions, limitations and time analysis.
www.usaitca.army.mil
www.usaitca.army.mil