by C. Wroe Wolfe ... [and others]
Heath and Company, 1966
Buku Teks
Pak, Chang-bom
Ewha Womens University Press, 2008
Buku Teks
Cambridge University Press , 1989
Buku Teks
Chapman, Robert D.
W.H. Freeman, 1978
Buku Teks
Rees, Martin
Basic Books , 1999
Buku Teks