John Wiley & Sons, 1985
Buku Teks
Castells, Manuel, author
Macmillan, 1978
Buku Teks
edited by Saul Patai
John Wiley & Sons, 1975
Buku Teks
edited by Harold Sackman, Ronald L. Citrenbaum
Prentice-Hall, 1972
Buku Teks
edited by Detlef Gloge
IEEE-Press, 1976
Buku Teks