Ashar Sunyoto Munandar, author
UI-Press, 2006
Buku Teks
Nicolson, Paula, author
MacMillan Education, 1986
Buku Teks
Adams, Linda
Gramedia Pustaka Utama, 1995
Buku Teks
Bass, Bernard M., author
Allyn and Bacon, 1979
Buku Teks
Candra Murti Utami, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2012
UI - Skripsi (Open)