Smiley, Donald V.
McGraw-Hill Ryerson, 1980
Buku Teks
Scott, F. R. (Francis Reginald)
Published in co-operation with Carleton University by University of Toronto Press, 1959
Buku Teks
Raine, David F.
Hurtig Publishers, 1980
Buku Teks
Carswell Co., 1958
Buku Teks
Stevens & Sond Limited, 1959
Buku Teks