M. McPherson; L. Smith-Lovin & J. M. Cook (2001). "Birds of a feather: Homophily in social networks". Annual Review of Sociology. 27: 415–444. doi:10.1146/annurev.soc.27.1.415. S2CID2341021.
M. McPherson; L. Smith-Lovin & J. M. Cook (2001). "Birds of a feather: Homophily in social networks". Annual Review of Sociology. 27: 415–444. doi:10.1146/annurev.soc.27.1.415. S2CID2341021.