Humphries, D. L., Behrman, J. R., Crookston, B. T., Dearden, K. A., Schott, W., & Penny, M. E. (2014). Households across All Income Quintiles, Especially the Poorest, Increased Animal Source Food Expenditures Substantially during Recent Peruvian Economic Growth. PLoS One.

Humphries, Debbie L., Jere R. Behrman, Benjamin T. Crookston, Kirk A. Dearden, Whitney Schott, et Mary E. Penny. "Households Across All Income Quintiles, Especially the Poorest, Increased Animal Source Food Expenditures Substantially During Recent Peruvian Economic Growth." PLoS One 2014.

Humphries, Debbie L., et al. "Households Across All Income Quintiles, Especially the Poorest, Increased Animal Source Food Expenditures Substantially During Recent Peruvian Economic Growth." PLoS One 2014.