WALKER, Robert Kenyon. Relating Outputs, Outcomes and Impact in the Evaluation of International Development Projects. Journal of MultiDisciplinary Evaluation, Kalamazoo, MI, USA, v. 11, n. 24, p. 76–83, 2015. DOI: 10.56645/jmde.v11i24.424. Disponível em: https://jmde.journals.publicknowledgeproject.org/index.php/jmde_1/article/view/424. Acesso em: 3 may. 2026.