GRAVELLS, A. (2014). Achieving your assessor and quality assurance units (TAQA). Sage Publications.
Chicago Style aipamenaGRAVELLS, Ann. Achieving Your Assessor and Quality Assurance Units (TAQA). Sage Publications, 2014.
MLA aipamenaGRAVELLS, Ann. Achieving Your Assessor and Quality Assurance Units (TAQA). Sage Publications, 2014.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.