#	Person	Titel	Jahr
1	Barna, George	The Frog in the Kettle : What Christians need to know about Life in the Year 2000 [7. Aufl.]	1992
2	Barna, George	User Friendly Churches : What Christians Need to Know About the Churches People Love to Go to [7. Aufl.]	1992
3	Barna, George	How to Increase Giving in Your Church : A Practical Guide to the Sensitive Task of Raising Money for Your Church or Ministry [20. Aufl.]	2003
4	Viola, Frank	Pagan Christianity?	2008