de Waal, Frans B. M., and Angeline van Roosmalen. 1979“. Reconciliation and Consolation among Chimpanzees.” Behavioral Ecology and Sociobiology 5(1): 55-66.
Diamond, Jared. 2005. Collapse: How Societies Choose to Fail or Succeed. New York: Viking Press.
Diegelmann, Robert F., and Melissa C. Evans. 2004.“Wound Healing: An Overview of Acute, Fibrotic, and Delayed Healing.” Frontiers in Bioscience9:283-289.
Di Folco, Philippe. 2004. Skin Art. Paris: Fitway Publishing.