Steele, James, author
Academy Editions, 1996
Buku Teks
Jones, Margo, author
McGraw-Hill, 1965
Buku Teks
Seoul : Chungang University, 1986
Buku Referensi
Malm, William P.
Charles E. Tuttle, 1983
Buku Teks
Richter, Max M., author
Institute of South East Asia Studies,
eBooks