Bish, Robert L.
Economic principles and urban problems
Prentice-Hall, 1974
 Buku Teks
Downs, Anthony
Urban problems and prospects
Markham Publishing, 1970
 Buku Teks
Shure, Myrna B.
Thinking parent, thinking child : how to turn your most challenging everyday problems into solutions
McGraw-Hill , 2005
 Buku Teks
Population: challenging world crisis
edited by Bernard Berelson
Information Agency, 1975
 Buku Teks
Functional assessment for challenging behaviors
Johnny L. Matson, editor
[Springer, Springer], 2012
 eBooks