CLEMENTS, Paul. Evaluating the Cost Effectiveness of Heifer International Country Programs. Journal of MultiDisciplinary Evaluation, Kalamazoo, MI, v. 8, n. 18, p. 16–28, 2012. DOI: 10.56645/jmde.v8i18.341. Disponível em: https://journals.sfu.ca/jmde/index.php/jmde_1/article/view/341. Acesso em: 1 may. 2024.