1. Why We Cooperate;Tomasello,2009
2. Early social cognition in three cultural contexts;Callaghan;Monogr Soc Res Child Dev,2011
3. The roots of human altruism;Warneken;Br J Psychol,2009
4. The strategy of affect: emotions in human cooperation;Fessler,2003
5. Born to Be Good: The Science of a Meaningful Life;Keltner,2009