1. Allen, K., Shykoff, B. E., & Izzo, J. L. (2001). Pet ownership, but not ACE inhibitor therapy, blunts home blood pressure responses to mental stress. Hypertension, 38(4), 815–820.
2. American Institutes for Research. (2015). CBAM: The concerns-based adoption model. Retrieved May 22, 2019 from:
https://www.air.org/resource/cbam-concerns-based-adoption-model
.
3. American Pet Products Association (APPA). (2019). 2019–2020 APPA national pet owners survey. Retrieved May 20, 2019 from:
https://www.americanpetproducts.org/pubs_survey.asp
.
4. Antonowicz, D. H. & Parker, J. (2014) Reducing recidivism: Evidence from 28 years of international evaluations of reasoning & rehabilitation programs.
http://archive.icpa.ca/tools/download/1937/Reasoning_and_Rehabilitation_Review
.
5. Arluke, A., & Sanders, C. R. (1996). Regarding animals. Philadelphia, PA: Temple University Press.