Pearce, David William, 1941-
Harvester Wheatsheaf, 1990
Buku Teks
Camp, William G.
Delmar, 1997
Buku Teks
Avery, Thomas Eugene
McGraw-Hill, 1975
Buku Teks
McKern, Robert Bruce
McGraw-Hill, 1976
Buku Teks
edited by D.W. Pearce with the assistance of J. Rose
Macmillan, 1975
Buku Teks