Benge, Eugene J., author
Amacon, 1976
Buku Teks
Yeager, Fred C., author
Prentice Hall International, 1989
Buku Teks
Crawford, C. Merle, author
McGraw-Hill/Irwin, 2000
Buku Teks
Waters, Dan
Prentice-Hall, 1991
Buku Teks
compiled by David R. Hampton
Prentince-Hall of India, 1979
Buku Teks