Prentice-Hall, 1987
Buku Teks
edited by Paul G. Jespers, Carlo H. SeÌquin, Fernand van de Wiele
Sijthoff & Noordhoff, 1982
Buku Teks
Glasser, Lance A.
Addison-Wesley, 1985
Buku Teks
Weste, Neil H. E., author
Addison-Wesley, 1985
Buku Teks
Laker, Kenneth R., author
McGraw-Hill, 1994
Buku Teks