The Netherlands, 1978
Buku Teks
Fuller, Lon L.
Penguin Books, 1971
Buku Teks
Cambridge University Press, 2004
Buku Teks
Merryman, John Henry, author
Stanford Studies in Law and Development, 1979
Buku Teks
Teuku Mohammad Radhie, author
Yayasan Penelitian dan Pengembangan Hukum, 1976
Buku Teks