Taylor, Griffith, author
Methuen, 1949
Buku Teks
Elkins, T. H., author
Macmillan, 1973
Buku Teks
Lefebvre, Henri, author
University of Minnesota Press, 2003
Buku Teks
Carter, Harold, author
Longman, 1990
Buku Teks
Bergel, Egon Ernest, author
McGraw-Hill, 1955
Buku Teks