1. , , . 2001. Simple Solutions: Ergonomics For Farm Workers, DHHS (NIOSH) Publication No. 2001-111.
2. 1997. A Critical Review of Epidemiologic Evidence for Work Related Musculoskeletal Disorders of the Neck, Upper Extremity, and Low Back. U.S. Department of Health and Human Services (NIOSH) Publication No. 97B141.
3. 1998. Borg's Perceived Exertion and Pain Scales, Human Kinetics, 1st edition. Champaign, Illinois: Human Kinetics Publishers.
4. 1999. The Dissertation Book. Verlag, Grauer, Stuttgart, Germany: Universität Hohenheim.
5. Occupational injuries among North Carolina migrant farmworkers.