Packer, Melissa, April Oxendine, and Karen Woodell. "Syphilis Elimination in Robeson County: Challenges of Addressing the Problem among Sex Workers." North Carolina medical journal 67.5 (2006): 381-83.
Davis, Adam Clarke, et al. Fertility Behavior in a Tri-Racial, Low Income Rural County. Project report. Raleigh: North Carolina State U, Dept. of Sociology and Anthropology, 1974.