Boyle, John Andrew, author
Luzac & Company, 1949
Buku Referensi
Jaschke, H. A., author
Curzon Press, 1998
Buku Referensi
Winstedt, Richard O., author
Marican & Sons, 1960
Buku Referensi
Yuen, Ren Chao, author
Harvard University Press, 1962
Buku Referensi
Robson, Stuart, author
Periplus, 2002
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