POWELL, Steve. Supplement to Theories of Change: Making Value Explicit. Journal of MultiDisciplinary Evaluation, Kalamazoo, MI, USA, v. 15, n. 32, p. 53–54, 2019. DOI: 10.56645/jmde.v15i32.561. Disponível em: https://www.jmde.com/index.php/jmde_1/article/view/561. Acesso em: 31 may. 2026.