Stahl, R. J. (1994). Cooperative learning in social studies: A handbook for teachers. Addison-Wesley.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStahl, Robert J. Cooperative Learning in Social Studies: A Handbook for Teachers. Menlo Park, Calif: Addison-Wesley, 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्रStahl, Robert J. Cooperative Learning in Social Studies: A Handbook for Teachers. Addison-Wesley, 1994.
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