Gleich, Michael; Maxeiner, Dirk; Miersch, Michael; Nicolay, Fabian
Atlantic Monthly Press, 2002
Buku Referensi
by Dennis Nicholson [and others]
The British library , 1995
Buku Teks
Jin Xiong, author
Cambridge University Press, 2008
Buku Teks
Stark, Edward C., author
Glencoe, 1979
Buku Teks
Oldham, Frances K., author
J. B. Lippincott, 1960
Buku Teks