Nagel, D. (2015). Effective grading practices for secondary teachers: Practical strategies to prevent failure, recover credits, and increase standards-based/referenced grading. Corwin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNagel, Dave. Effective Grading Practices for Secondary Teachers: Practical Strategies to Prevent Failure, Recover Credits, and Increase Standards-based/referenced Grading. Thousand Oaks, California: Corwin, 2015.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNagel, Dave. Effective Grading Practices for Secondary Teachers: Practical Strategies to Prevent Failure, Recover Credits, and Increase Standards-based/referenced Grading. Corwin, 2015.
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