Rosengren, L. B., Waldner, C. L., Reid-Smith, R. J., Harding, J. C., Gow, S. P., & Wilkins, W. L. (2008). Antimicrobial use through feed, water, and injection in 20 swine farms in Alberta and Saskatchewan. Canadian Veterinary Medical Association.

Rosengren, Leigh B., Cheryl L. Waldner, Richard J. Reid-Smith, John C.S Harding, Sheryl P. Gow, và Wendy L. Wilkins. Antimicrobial Use Through Feed, Water, and Injection in 20 Swine Farms in Alberta and Saskatchewan. Canadian Veterinary Medical Association, 2008.

Rosengren, Leigh B., et al. Antimicrobial Use Through Feed, Water, and Injection in 20 Swine Farms in Alberta and Saskatchewan. Canadian Veterinary Medical Association, 2008.