* Feierman, Jay (2015): [http://ishe.org/wp-content/uploads/2015/02/HEB_2015_30_3_13-15.pdf A Human Ethologist's Perspective on Human Nature], pdf, Human Ethology Bulletin. 30 (3): 13–15. | * Feierman, Jay (2015): [http://ishe.org/wp-content/uploads/2015/02/HEB_2015_30_3_13-15.pdf A Human Ethologist's Perspective on Human Nature], pdf, Human Ethology Bulletin. 30 (3): 13–15. |