Yosal Iriantara, author
Simbiosa Rekatama Media, 2005
Buku Teks
Coulson-Thomas, Colin, author
Bumi Aksara, 1993
Buku Teks
Bernays, Edward L., author
University of Oklahoma Press, 1952
Buku Teks
Haywood, Roger, 1939-, author
McGraw-Hill , 1984
Buku Teks
Cutlip, Scott M., author
Indeks, 2005
Buku Teks