Kupfer, Fern
Simon & Schuster , 1994
Buku Teks
McCall Smith, Alexander, 1948-, author
BC Books, 2015
Buku Teks
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2003
UI - Skripsi (Membership)
Pakpahan, Agreeya Natalian T., author
Universitas Indonesia, 2010
UI - Skripsi (Open)
Teuku Arsya Khadafi, author
2012
UI - Tesis (Membership)