KASSIE, G. T.; MALENI, D. .; GWARA, S. .; EMANA, B. . Efficiency of Moisture Stress Risk Coping Strategies in North Eastern Ethiopia: Application of Mean-Variance Efficiency Analysis. Asian Economic and Financial Review , [S. l.], v. 3, n. 8, p. 1018–1032, 2013. Disponível em: https://archive.aessweb.com/index.php/5002/article/view/1068. Acesso em: 25 nov. 2024.