edited by Peter Cowie
Hamlyn, 1995
Buku Referensi
J.B. Kristanto, author
Kompas, 2004
Buku Teks
Boggs, Joseph M., author
Mountain View, Ca. Mayfield Publishing 1995,
Buku Teks
Anderson, Joseph L., author
Rutland Charles E Tuttle 1959
Buku Teks
Quinlan, David, author
Mandarin, 1994
Buku Referensi