David Hay
London : Routterworths, 1993,
Buku Referensi
Edy Purwanto, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2001
UI - Tesis Membership
Muhammad Iqbal Isnaeni, author
2015
UI - Skripsi Membership
Sujamto, author
Bina Aksara, 1988
Buku Teks
Mallarangeng, Andi, author
Bigraf publishing, 2001
Buku Teks