APA (7 वां संस्करण) प्रशस्ति पत्र
Barkley, E. F., Major, C. H., & Cross, K. P. (2014). Collaborative learning techniques: A handbook for college faculty (Second edition.). Jossey-Bass.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Barkley, Elizabeth F., Claire Howell Major, और K. Patricia Cross. Collaborative Learning Techniques: A Handbook for College Faculty. Second edition. San Francisco, California: Jossey-Bass, 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Barkley, Elizabeth F., et al. Collaborative Learning Techniques: A Handbook for College Faculty. Second edition. Jossey-Bass, 2014.
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