by C. Wroe Wolfe ... [and others]
Heath and Company, 1966
Buku Teks
Pak, Chang-bom
Ewha Womens University Press, 2008
Buku Teks
Arny, Thomas T.
McGraw-Hill, Higher Education, 2004
Buku Teks
Hodge, Paul W.
McGraw-Hill, 1974
Buku Teks
Hartman, William K.
Wadswoth, 1978
Buku Teks