Ortolano, Leonard
John Wiley & Sons, 1997
Buku Teks SO
edited by A. Boyle
Clarendon Press, 1994
Buku Teks SO
Giuliano Amato, Laraine Laudati, editor
Edward Elgar , 2001
Buku Teks SO
Little,Brown and Company, [Date of publication not identified]
Buku Teks SO
Anjaneyulu, Y.
BS Publication, 2011
Buku Teks SO