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• Putman ,Jim, Harrington, Bobby, and Coleman, Robert E. Discipleshift. Michigan: Zondervan, 2013.

 

• Willard, Chris and Sheppard, Jim.Contagious Generosity: Creating a Culture of Giving in Your Church. Michigan: Zondervan, 2012.

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• Covey, Stephen M.R. The Speed of Trust: The One Thing That Changes Everything. New York: Free Press, 2018.

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• Doerr, John. Measure What Matters : How Google, Bono, and the Gates Foundation Rock the World with OKRs. New York: Penguin Random House, 2018. 

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