Denielle EMANS, Adina HEMPEL, Measuring impact: Program evaluation and design for social change, Blucher Design Proceedings, Volume 8, 2016, Pages 302-307, ISSN 23186968, http://dx.doi.org/10.5151/despro-icdhs2016-03_021 (www.proceedings.blucher.com.br/article-details/measuring-impact-program-evaluation-and-design-for-social-change-24206) Palavras-chave:: ;