Halpern, D. F. (1994). Changing college classrooms: New teaching and learning strategies. Jossey-Bass.
Lua i Stíl Chicago (17ú heag.)Halpern, Diane F. Changing College Classrooms: New Teaching and Learning Strategies. San Francisco: Jossey-Bass, 1994.
Lua MLA (9ú heag.)Halpern, Diane F. Changing College Classrooms: New Teaching and Learning Strategies. Jossey-Bass, 1994.
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