HULL, T. H. (2011). Realizing rigor in the mathematics classroom. Corwin.
Chicago-čujuhus (17. p.)HULL, Ted H. Realizing Rigor in the Mathematics Classroom. Corwin, 2011.
MLA-čujuhus (9. p.)HULL, Ted H. Realizing Rigor in the Mathematics Classroom. Corwin, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.