Seckler-Hudson, Catheryn
The United State of America : a government by the People
United State Information Service, 1959
 Buku Teks
Politik luar Negeri Amerika Serikat pada masa pemerintahan Presiden Richard Nixon 1969-1974 kebijakan d'tente dalam upaya perdamaian pada masa perang dingin = United states foreign policy during President Richard Nixon s era in 1969-1974 d' tente policy in the attempt to foster peace during cold war period
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2014
 UI - Skripsi Membership
Education in the United State: a brief overview
Department of Health , 1977
 Buku Teks
The United States of America : a government by the people
The America University, [date of publication not identified]
 Buku Teks
Holloway, William Vernon
State and local government in the United States
McGraw-Hill , 1951
 Buku Teks