Wade, Bonnie C.
Cambridge University Press, 1984
Buku Teks
edited by A.B. Shah and C.R.M. Rao
Manaktalas, 1965
Buku Teks
Lingat, Robert
University of California Press, 1973
Buku Teks
Brakel-Papenhuyzen, Clara, author
KITLV Press , 1995
Buku Teks
Von Mises, Ludwig, 1881-1973, author
Freedom Institute, 2011
Buku Teks