Harasim, Linda, 1949-
Routledge, Taylor & Francis Group, 2017
Buku Teks
edited by D.J. Stewart
Thomson Book Company, 1967
Buku Teks
Faure, Edgar
Unesco, 1973
Buku Teks
Faure, Edgar
Unesco, 1973
Buku Teks
Dibella, Anthony J.
Prentice-Hall, 2001
Buku Teks