Axelrod, Warman, author
Prentice-Hall, 1982
Buku Teks
Gregory, B. A., author
ELBS, 1977
Buku Teks
Sonka, Steven T., author
McGraw-Hill, 1983
Buku Teks
Reysa Almira Besila, author
Fakultas Ilmu Administrasi Universitas Indonesia, 2014
UI - Skripsi (Membership)
Reynolds, John I.
International Labour Office, 1980
Buku Teks