Pollard, William E.
Sage, 1986
Buku Teks
Robson, Stuart
ILCAA, 2015
Buku Teks
Robson, Stuart
Research Institute for Languages and Cultures of Asia and Africa (ILCAA), 2015
Buku Klasik
Burrows, William E.
Random House, 1998
Buku Teks SO
Knight, Ronald A.
Dickenson Pub. , 1969
Buku Teks SO