GRAVELLS, A. (2014). Achieving your assessor and quality assurance units (TAQA). Sage Publications.
Chicago-referens (17:e uppl.)GRAVELLS, Ann. Achieving Your Assessor and Quality Assurance Units (TAQA). Sage Publications, 2014.
MLA-referens (9:e uppl.)GRAVELLS, Ann. Achieving Your Assessor and Quality Assurance Units (TAQA). Sage Publications, 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.