(2009). Go maths course book. Scholastic.
Chicago-čujuhus (17. p.)Go Maths Course Book. New York: Scholastic, 2009.
MLA-čujuhus (9. p.)Go Maths Course Book. Scholastic, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.