Eberhard, Wolfram
Routledge, 1996
Buku Referensi
Eberhard, Wolfram, 1909-1989
St Edmundsbury Press, 1996
Buku Teks
Morgan, Harry T.
California Perkins, 1942
Buku Teks SO
Ong, Hean-Tatt
Malaysia Pelanduk Publications, 1994
Buku Teks SO
translated, described, and annotated by A.C. Scott
Caves Book, 1984
Buku Teks SO