Campbell, D., and J. Stanley. 1963. Experimental and Quasi-experimental Designs for Research. Chicago: Rand McNally.
Dixon, B. R., G. D. Bouma, and G. B. J. Atkinson. 1991. A Handbook of Social Science Research. Oxford: Oxford University Press.
Fetterman, D., S. Kaftarian, and A. Wandersman., eds. 1996. Empowerment Evaluation: Knowledge and Tools for Self Assessment and Accountability. Thousand Oaks, CA: Sage Publications.
Mason, J. 1996. Qualitative Researching. London: Sage Publications.
McCain, G., and E. Segal. 1969. The Game of Science. Belmont, CA: Brooks/Cole.
Seymour, A., L. M. Williams, P. Mahoney, and N. Shields. Fostering Collaborations Between Researchers and Practitioners: Findings from Practitioner Focus Groups. A Report of the National Violence Against Women Prevention Research Center. Charleston, SC: National Violence Against Women Prevention Research Center.