1. Categorical Data Analysis;Agresti,2002
2. Effects of heterogeneity and homophily on cooperation;Aksoy;Soc. Psychol. Q.,2015
3. The Evolution of Cooperation;Axelrod,1984
4. Inequality and Heterogeneity: A Primitive Theory of Social Structure. Nowy Jork;Blau,1977
5. Structural Contexts of Opportunities;Blau,1994