1
by Edwards
Published 1982
Subjects: '; ...Evaluation research...
2
by Patton
Published 2002
Subjects: '; ...Evaluation research (Social action programs)...
3
by Piaw
Published 2012
Subjects: '; ...Evaluation research...
4
by Piaw
Published 2013
Subjects: '; ...Evaluation research...
5
by Boruch
Published 1997
Subjects: '; ...Evaluation research (Social action programs)...