LETSON, D.; SETIA, P. P. On-Farm costs of reducing environmental degradation under risk. Estudios Económicos de El Colegio de México, [S. l.], v. 9, n. 2, p. 163–187, 1994. DOI: 10.24201/ee.v9i2.279. Disponível em: https://estudioseconomicos.colmex.mx/index.php/economicos/article/view/279. Acesso em: 29 mar. 2024.