Baskette, Floyd K.
Macmillan, 1982
Buku Teks
Morrish, John
Routledge, 1996
Buku Teks
Sharpe, Leslie T.
Camberidge University Press , 1994
Buku Teks
Cameron, Edward A.
Reynal & Hitchock, 1941
Buku Teks
Kafka, Franz, 1883-1924
Frankfurt S Fischer 1958
Buku Teks