Ban, Song
Foreigns Language, 1960
Buku Teks
Chen, Jack
Dennis Dobston, 1949
Buku Teks
Song-Ban
Foreign Languages Pub. House, 1960.
Buku Teks
New York : Science Press
Majalah, Jurnal, Buletin
edited by Phyllis Hartnoll
Oxford University Press, 1951
Buku Referensi