WATTS, Brad R. Review of Evaluation and Program Planning, volume 28(4). Journal of MultiDisciplinary Evaluation, Kalamazoo, MI, v. 3, n. 4, p. 169–172, 2007. DOI: 10.56645/jmde.v3i4.89. Disponível em: https://journals.sfu.ca/jmde/index.php/jmde_1/article/view/89. Acesso em: 3 may. 2024.