DeVries, Mark. Sustainable Youth Ministry: Why Most Youth Ministry Does Last and What Your Church Can Do About It. (Downers Group: IVP, 2008). Chapter 7: Searching Right, p. 90.
Jones, Karen; Rahn, Dave and Strommen, Merton. Youth Ministry That Transforms. (Zondervan, 2001). Chapter 4: Focusing on Three Top Ministry Priorities, p. 135.