Stewart, Rosemary, author
McGraw-Hill, 1976
Buku Teks
Stewart, Rosemary, author
McGraw-Hill, 1976
Buku Teks
Gaster, Lucy, 1940-, author
Open University Press, 1995
Buku Teks
Knoll, Robert E., author
Harcourt, Brace and Company, 1959
Buku Teks
Coulmas, Florian, author
Cambridge University Press, 2005
Buku Teks