Frideres, James S
Prentice Hall Canada, 1988
Buku Teks
Lower, Arthur R.M., author
The Haddon Craftsmen, 1941
Buku Teks
edited by Maureen Baker
McGraw-Hill Ryerson, 1984
Buku Teks
Hutchison, Bruce, author
Longmans Green, 1957
Buku Teks
Manzer, Ronald A., author
McGraw-Hill , 1974
Buku Teks