Seippel, Robert G., author
Reston, 1981
Buku Teks
Wilson, J. (John), author
Prentice-Hall, 1983
Buku Teks
Wilson, J. (John), author
Prentice-Hall, 1989
Buku Teks
Wilson, John, author
Prentice-Hall, 1998
Buku Teks
Pollock, Clifford R., author
Irwin, McGraw-Hill, 1995
Buku Teks