Beauchamp, T. L., & Childress, J. F. (1994). Principles of biomedical ethics (4th ed.). Oxford, UK: Oxford University Press.
2.
Brugge, D., Kole, A., Lu, W., & Must, A. (2005). Susceptibility of elderly Asian immigrants to persuasion with respect to participation in research. Journal of Immigrant Health, 7(2), 93-101.
3.
McDermott, R. J., & Sarvella, P. D. (1999). Health education evaluation and measurement: A practitioner’s perspective (2nd ed.). New York: WCB/McGraw-Hill.
4.
Smith, J. (2000). Natural law and sexual ethics. In E. B. McLean (Ed.), Common truths: New perspectives on natural law (pp. 193-215). Wilmington, DE: ISI Books.
5.
Stumpf, S. E. (1983). Philosophy: History and problems (3rd ed.). New York: McGraw-Hill.
6.
Thickstun, P., & Hendricks, K. (2005). Evidence that demands action: Comparing risk avoidance and risk reduction strategies for HIV prevention. Austin, TX: The Medical Institute for Sexual Health.