"You Can Do It Now!". Dieter F. Uchtdorf's priesthood session address at the Church of Jesus Christ of Latter-day Saints in Salt Lake City, Utah, www.lds.org. October 2013.
Robert Spector, Patrick D. McCarthy (2012). “The Nordstrom Way to Customer Service Excellence: The Handbook For Becoming the "Nordstrom" of Your Industry”, p.29, John Wiley & Sons