Tolong jelaskan mengenai Rujukan dari People for the Ethical Treatment of Animals dalam bahasa melayu

Pence, Gregory. Classic Cases in Medical Ethics: Accounts of Cases That Have Shaped Medical Ethics. McGraw-Hill, 2007.

Workman, Dave P. Peta Files: The Dark Side of the Animal Rights Movement, Merril Press, 2003.

Pertubuhan yang diasaskan pada 1980