Morris, Richard B., author
Van Nostrand Reinhold, 1955
Buku Teks
Lefebvre, Henri, author
University of Minnesota Press, 2003
Buku Teks
Good, John M.
Heath , 1970
Buku Teks
Baradat, Leon P., author
[publisher not identified], [date of publication not identified]
Buku Teks
Chang Liu
New York : Routledge , 2007
Buku Teks