Sona e-Mag. Sona School of Management.
Chicago-čujuhus (17. p.)Sona E-Mag. Sona School of Management.
MLA-čujuhus (9. p.)Sona E-Mag. Sona School of Management.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.
APA-čujuhus (7. p.)