Washington U.S. Department of Health, Education, and Welfare 1955
Buku Teks
[T.t] [T.p] [T.th],
Buku Teks
Artikel Jurnal
Jakarta : Dinas Penerangan dan Kebudayaan Dubes AS dan Biro program Informasi Internasional/Deplu AS, 2005,
Majalah, Jurnal, Buletin
Lipset, Seymour Martin
Jakarta Pustaka Sinar Harapan 1994,
Buku Teks