Traister, John E., author
Reston Publishing Company, 1979
Buku Referensi
Marne, David J., author
McGraw-Hill, 2002
Buku Referensi
McPartland, Joseph F., author
McGraw-Hill, 1984
Buku Referensi
Knowlton, Archer E., editor-in-chief
McGraw-Hill,
Buku Referensi
edited by Donald G. Fink, H. Wayne Beaty
McGraw-Hill, 1987
Buku Referensi