Barden, William Jr., author
Howard W. Sams & Co., 1977
Buku Teks
Rude, Robert T., 1942-, author
Prentice-Hall, 1986
Buku Teks
McGraw-Hill , 1984
Buku Teks
Godfrey, J. Terry, author
Prentice-Hall, 1990
Buku Teks
Webb, Kerry, author
ALIA Press, 1991
Buku Teks