Bursk, Edward Collins, author
Prentice-Hall, 1975
Buku Teks
Cravens, David W., author
McGraw-Hill Irwin, 2002
Buku Teks
Lal, Rajiv, author
McGraw-Hill, 2005
Buku Teks
Lazo, Hector, author
McGraw-Hill, 1961
Buku Teks
Johnson, Lewis K., author
Allyn and Bacon, 1957
Buku Teks