Mirhaji, H., Khojastehpour, M., Abbaspour-Fard, M., & Mahdavi Shahri, S. M. "Environmental impact study of sugar beet (Beta vulgaris L.) production using life cycle assessment (Case study: South Khorasan region)", Journal Of Agroecology, 4, 2, 2012, 112-120. doi: 10.22067/jag.v4i2.15017