Vargas, Robert
Wounded city: violent turf wars in a Chicago Barrio
Oxford University Press, 2016
 eBooks
Values and attitudes across nations and time
Masamichi Sasaki, editor
Brill, 1998
 Buku Teks
Tuan, Yi-fu
Topophilia: a study of environmental perception, attitudes, and values
Columbia University, 1990
 Buku Teks
Kim, Tae-Kil
Values of Korean people mirrored in fiction
dae Kwang Munwhasa, 1990
 Buku Teks
Freeman, A. Myrick, 1936-
The measurement of environmental and resources values: theory and methods
Resources for the Future, 1993
 Buku Teks