1. Abt Associates Inc. (Fosburg, L. B., Popkin, S. J. & Locke, G. P.). (1996, July). An Historical and Baseline Assessment of HOPE VI, vol. I, Cross-site Report.
2. Buron, L., Popkin, S. J., Levy, D., Haris, L. E. & Khadduri, J. (2002). The HOPE VI Resident Tracking Study, prepared by the Urban Institute for the U.S. Department of Housing and Urban Development Office of Public Housing Investment. Retrieved May 21, 2004, from http://www.urban.org/url.cfm%3FID=410591
3. W.H.GreeneEconometric Analysis2nd ed.1993MacmillanNew York