Printing Bureau, Ministry of Finance , 1990
Buku Teks
Dean, Meryll, author
Cavendish Publishing Limited, 2002
Buku Teks
Fukutake, Tadashi, author
Cornell University Press, 1967
Buku Teks
Noguchi, Yone, author
John Murray, 1915
Buku Teks
Alfonso, Anthony, author
Sophia University LL Center of Applied Linguistics, 1980
Buku Teks