Gravells, A. (2016). Principles and practices of assessment: A guide for assessors in the FE and skills sector (Third edition.). SAGE ; Learning Matters.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGravells, Ann. Principles and Practices of Assessment: A Guide for Assessors in the FE and Skills Sector. Third edition. Los Angeles ; London: SAGE ; Learning Matters, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGravells, Ann. Principles and Practices of Assessment: A Guide for Assessors in the FE and Skills Sector. Third edition. SAGE ; Learning Matters, 2016.
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