Robbins, Harold, 1916-1997
New English Library, 1973
Buku Teks
Scott, Paul
Panther Books, 1983
Buku Teks
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