Barkley, E. F. Student engagement techniques: A handbook for college faculty.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBarkley, Elizabeth F. Student Engagement Techniques: A Handbook for College Faculty.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBarkley, Elizabeth F. Student Engagement Techniques: A Handbook for College Faculty.
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