You can include any testimonials you get as part of your educational history or your employment / volunteering / work placement history. (youthcentral.vic.gov.au)
For the adopted child or youth, it may also include placement history and any history of abuse or neglect. (childwelfare.gov)
Public relations manager demonstrating effective problem solving skills and the ability to manage complex projects while leading various teams with proven placement history in top media outlets, precise organization of large scale events, excellent client service, and successful sales and revenue generation. (members.climber.com)