Rijanto Tosin, author
Dinastindo, 1991
Buku Referensi
Ryan, Daniel, author
Brooks / Cole Pub, 1983
Buku Teks
Coughlin, Robert F., author
Prentice-Hall, 1968
Buku Referensi
Kuong, Javier F., author
Prentice-Hall, 1987
Buku Teks
Keyes, Ruth A., author
Prentice-Hall, 1986
Buku Teks