Bank BTPN, 2005
Buku Referensi
Mahkamah Konstitusi RI, 2006
Buku Teks
Library of Congress; [managing editor, Audrey Fischer]
Library of Congress, 2006
Buku Teks SO
Nestle Foundation
Nestle Foundation, 2006
Buku Teks
Washington, D.C. World Bank 1999,
Buku Teks