Drury, Allen
Doubleday & Company, Inc.,Garden City, 1959
Buku Teks
Lindstrom, Talbot S.
The Lawyers Co-Operative Pub. Co., 1978
Buku Teks
Springer, 2012
eBooks
Ericka Hirnanti, author
Fakultas Hukum Universitas Indonesia, 1992
UI - Skripsi (Membership)
Bharath, R.
Ellis Horwood, 1991
Buku Teks