Woo, Julia T.
Harper & Row , 1986
Buku Teks
Sanford, Edward, author
Winthrop, 1977
Buku Teks
Grunig, Rudolf, author
Pringer, 2005
Buku Teks
Jie Lu, Lakhmi C. Jain, Guangquan Zhang, editor
[, Springer-Verlag], 2012
eBooks
Rubinstein, Moshe F., author
Prentice-Hall, 1975
Buku Teks