Tarsisius Florentinus Sio Sewa, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2002
UI - Tesis (Membership)
Kabagarama, Daisy
Allyn and Bacon, 1993
Buku Teks
Samovar, Larry A., author
Wadsworth and Cengage Learning, 2012
Buku Teks
Scollon, Ronald, author
Blackwell Publishing, 2001
Buku Teks
Martin, Judith N., author
McGraw-Hill, 2008
Buku Teks