^Raad, Elie; Chbeir, Richard (2013). Privacy in Online Social Networks. {{cite book}}: |access-date= requires |url= (help)
^Low, Sabina; Polanin, Joshua R; Espelage, Dorothy L (2013). "The role of social networks in physical and relational aggression among young adolescents". Journal of youth and adolescence. 42 (7): 1078. doi:10.1007/s10964-013-9933-5. ISSN0047-2891. {{cite journal}}: |access-date= requires |url= (help)
^Garton, Laura; Haythornthwaite, Caroline; Wellman, Barry (1997). "Studying online social networks". Journal of Computer‐Mediated Communication. 3 (1). Wiley Online Library. {{cite journal}}: |access-date= requires |url= (help)