Clark, G. Kitson.
SCM Press , 1950
Buku Teks
Pollard, Arthur, author
Longman, Green, 1960
Buku Teks
Freeborn, Dennis, author
Macmillan, 1993
Buku Teks
Narasimhaiah, C.D., author
Motilala Banarsidass, 1987
Buku Teks
Anson, Sir William R
3124, 1961
Buku Teks