Chaves, Mark. Congregations in America. Cambridge: Harvard, 2004.
Clydesdale, Timothy T. The First Year out Understanding American Teens after High School. Chicago: University of Chicago Press, 2007.
Dean, Kenda Creasy. Almost Christian: What the Faith of Our Teenagers Is Telling the American Church. Oxford University Press, USA, 2010.
Joint Commission on Theology and Practice of Confirmation. Report of the Joint Commission on the Theology and Practice of Confirmation. Lutheran Church in America, The American Lutheran Church, Lutheran Church-Missouri Synod, 1970.
Lewis, William F. Marketing Research: A Decision Making Approach. 10th edition. Dayton, OH: UD Printing & Design, 2011.
Mikoski, Gordon S. Baptism and Christian Identity: Teaching in the Triune Name. Grand Rapids, Mich.: William B. Eerdmans Pub. Co., 2009.
Miller-McLemore, Bonnie J. Christian Theology in Practice: Discovering a Discipline. Grand Rapids, Mich.: W.B. Eerdmans Pub. Co., 2012.
Osmer, Richard R. Practical Theology: An Introduction. Grand Rapids, MI: Wm. B. Eerdmans Publishing Co., 2008.
Roberto, John, Wesley Black, and Roland Martinson. The Spirit and Culture of Youth Ministry. EYM Publishing, 2012.
Schweitzer, Friedrich. Confirmation Work in Europe: Empirical Results, Experiences and Challenges ; a Comparative Study in Seven Countries. Gütersloh: Gütersloher Verl.-Haus, 2010.
Smith, Christian, and Melina Lundquist Denton. Soul Searching: The Religious and Spiritual Lives of American Teenagers. New York: Oxford, 2009.
Smith, Christian, and Patricia Snell. Souls in Transition: The Religious and Spiritual Lives of Emerging Adults. New York: Oxford, 2009.
Twenge, Jean M. Generation Me: Why Today’s Young Americans Are More Confident, Assertive, Entitled–and More Miserable than Ever before. New York: Free Press, 2006.
Wuthnow, Robert. After the Baby Boomers: How Twenty- and Thirty-Somethings Are Shaping the Future of American Religion. Princeton, NJ: Princeton University Press, 2010.