Glasser, Lance A.
Addison-Wesley, 1985
Buku Teks
edited by Paul G. Jespers, Carlo H. SeÌquin, Fernand van de Wiele
Sijthoff & Noordhoff, 1982
Buku Teks
Prentice-Hall, 1987
Buku Teks
Clarke, Kenneth K., author
Addison-Wesley, 1971
Buku Teks
Rashid, Muhammad H., author
Cengage learning, 2011
Buku Teks