Canadian Home Builders' Association (CHBA) BUILDERS' MANUAL and RENOVATORS' MANUAL.
These are the best overall, comprehensive references for this exam. They are available only in a printed version from the CHBA, and are approximately $85 each.
You can purchase them from at head office: 141 Laurier Ave W Suite 500, Ottawa, by telephone @ 613-230-3060 or order online at the links listed below: