Cleland, David I., author
McGraw-Hill , 1980
Buku Teks
Cleland, David I., author
McGraw-Hill, 1981
Buku Teks
Danny Samson
Prentice-Hall, 2001
Buku Teks
Blanchard, Benjamin S., author
Prentice-Hall, 1976
Buku Teks
John E. Ullmann, editor, Donald A. Christman, Bert Holtje, associate editors.
John Wiley & Sons, 1986
Buku Referensi