COMM 305 (ACCO 240): Managerial accounting, Weygandt, Kimmel, Kieso and Aly, 3rd Canadian edition, Hardcover, $ 35
COMM 215: Business Statistics, a decision-making approach, David F. Groebner, P. W. Shannon, P. C. Fry, Custom edition for Concordia University, Latest edition, $ 35