1. Allan, G. (1979). A sociology of friendship and kinship. G. Allen & Unwin.
2. Social Networks and the Life Course: Integrating the Development of Human Lives and Social Relational Networks;Alwin,2018
3. Convoys of attachment and social relations in children, adolescents, and adults;Antonucci,1994
4. The social construction of reality: A treatise in the sociology of knowledge;Berger,1966
5. The life course cube: A tool for studying lives;Bernardi;Advances in Life Course Research,2019