Rainer, Thom S. and Rainer, Jess W. (2011). The Millennials. Connecting to America’s Largest Generation. Nashville, TN: B&H Publishing Group. See chapter 4 “The New Normal of Openness and Diversity”, p. 77-100.
Stark, David. (2016). Reaching Millennials. Proven Methods for Engaging a Younger Generation. Grand Rapids, MI: Bethany House Publishers. See chapter 8 “Outsider Targeted Services”, p. 109-120.