Smedley, Agnes, author
Vanguard Press, 1938
Buku Teks
Languages Press, 1963
Buku Teks
Liu, Pai-Yu
Foreign Language , 1954
Buku Teks
Smedley, Agnes
The Vanguars Press, 1934
Buku Teks
by Franz Michael, Carl Linden, Jan Pryblyla, Jurgen Domes
Westview Press, 1990
Buku Referensi