APA-čujuhus (7. p.)
ebrary, Inc, Savin-Baden, M., & Wilkie, K. (2006). Problem-based learning online. Open University Press.
Chicago-čujuhus (17. p.)
ebrary, Inc, Maggi Savin-Baden, juo Kay Wilkie. Problem-based Learning Online. Maidenhead: Open University Press, 2006.
MLA-čujuhus (9. p.)
ebrary, Inc, et al. Problem-based Learning Online. Open University Press, 2006.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.