Cutlip, Scott M., author
Prentice-Hall, 1971
Buku Teks
Wolfe, David A., author
SAGE Publications, 1997
Buku Teks
Chen, John, compiler
China Intercontinental Press, 2010
Buku Teks
Peace Pilgrim
Santa Fe,, 1982
Buku Teks
Magee, John H.
Richard D. Irwin, 1951
Buku Teks