Fry, R. (2009). How to study (sixth.). Cengage Learning.
Chicago-čujuhus (17. p.)Fry, Rom. How to Study. sixth. New Delhi: Cengage Learning, 2009.
MLA-čujuhus (9. p.)Fry, Rom. How to Study. sixth. Cengage Learning, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.