1. Barentsen, Jack, Emerging Leadership in the Pauline Mission: A Social Identity Perspective on Local Leadership Development in Corinth and Ephesus (PTMS, 168; Eugene: Wipf & Stock, 2011)
2. Becker, Howard, Outsiders: Studies in the Sociology of Deviance (London: Collier-MacMillan, 1991)
3. Brown, Rupert, Group Processes: Dynamics Within and Between Groups (Oxford: Blackwell Publishers, 2000)
4. Dibelius, Martin och Hans Conzelmann, The Pastoral Epistles (Hermeneia; Philadelphia: Fortress, 1972),
5. Emling, Emil, Informellt ledarskap och organisatorisk förändring: En kunskapssammanställning (Stockholm: Trygghetsfonden för kommuner och landsting, 2002)