Conducted research and collected supportive documents and other evidences to defend such cases in court. (jobhero.com)
Your letter needs to be more of an official endorsement than a supportive document of research findings. (hoagiesgifted.org)
If you manage to get the writing process settled, then you will have enough time for research and preparation of visual aids, appendixes, and supportive documents. (custom-paper-writing.com)