Brown, E.D., author
Dartmouth, 1994
Buku Teks
Badan Pembinaan Hukum Nasional, Kementerian Hukum dan HAM Republik Indonesia, 1995
Buku Teks
Harrison, James, author
Cambridge University Press, 2011
Buku Teks
edited by Lewis M. Alexander
Ohio State University Press, 1967
Buku Teks
Brice, Geoffrey
Stevens and Son, 1983
Buku Teks