Tri-facta: Multiplication & division game. Learning Resources.
Chicago-čujuhus (17. p.)Tri-facta: Multiplication & Division Game. Vernon Hills, IL: Learning Resources.
MLA-čujuhus (9. p.)Tri-facta: Multiplication & Division Game. Learning Resources.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.