Galbraith, Douglas, author
Picador, 2001
Buku Teks
edited by Graham Molineux, Tara Arvedson, MaryAnn Foote
Springer, 2012
eBooks
Muhammad Ridho Rachman, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2013
UI - Skripsi (Membership)
Suryatna Rafi`i, author
Angkasa, 1994
Buku Teks
Sarwono Hardjowigeno, author
Mediyatma Sarana Prakasa, 1995
Buku Teks