Edited by Angela Gair
Chronicle Books, 1996
Buku Referensi
Harberts, Kurt, author
Frederick A. Preager, 1963,
Buku Teks
Bowers, Helen, author
Firefly Books, 2004
Buku Teks
Fitri Herdyanti Mardhiyah, author
Fakultas Ilmu Sosial Dan Ilmu Politik Universitas Indonesia, 2020
UI - Skripsi (Membership)
Schodek, Daniel L., author
MIT Press, 1993
Buku Teks