Lane, Jan-Erik
Routledge , 2000
Buku Teks
Gottdiener, Mark, author
Westview Press, 2015
Buku Teks
by Christopher Alexander ... [et al.]
Oxford University Press, 1987
Buku Teks
Clark, Samuel D., author
McGraw-Hill, 1978
Buku Teks
Owen, Robert
J.M. Dent & Sons , 1949
Buku Teks