Waters, Malcolm
Rontledge, 1995
Buku Teks
Adams, John, 1938-, author
St. Martin's Press, 1985
Buku Teks
Soros, George, author
PublicAffairs, 2002
Buku Teks
Williamson, John
Basic Books, Inc., 1983
Buku Teks
Fesa Husna Yovari, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2016
UI - Skripsi (Membership)