Halpern, D. F. (1994). Changing college classrooms: New teaching and learning strategies. Jossey-Bass.
Chicago-čujuhus (17. p.)Halpern, Diane F. Changing College Classrooms: New Teaching and Learning Strategies. San Francisco: Jossey-Bass, 1994.
MLA-čujuhus (9. p.)Halpern, Diane F. Changing College Classrooms: New Teaching and Learning Strategies. Jossey-Bass, 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.