Yi, Chongjun
Jimoondang Publ. Co, 2002
Buku Teks
Kaufman, Lenard
Random House , 1950
Buku Teks
Wetherell, W.D.
University of Pittsburgh Press , 1985
Buku Teks
O`Faolain, Sean, author
Constable, 1939
Buku Teks
Hilton, James, author
Macmillan, 1949
Buku Teks