Kalaja, P., & Ferreira, A. M. (2003). Beliefs about SLA: New research approaches. Dordrecht : Kluwer Academic Publishers.
Chicago-čujuhus (17. p.)Kalaja, Paula, juo Ana Maria Ferreira. Beliefs About SLA: New Research Approaches. Dordrecht : Kluwer Academic Publishers, 2003.
MLA-čujuhus (9. p.)Kalaja, Paula, juo Ana Maria Ferreira. Beliefs About SLA: New Research Approaches. Dordrecht : Kluwer Academic Publishers, 2003.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.