Helen Andelin (2013). “Fascinating Womanhood: The Updated Edition of the Classic Bestseller That Shows You How to Strengthen our Marriage and Enrich Your Life”, p.91, Bantam
Stephen R. Covey (2015). “The Stephen R. Covey Interactive Reader - 4 Books in 1: The 7 Habits of Highly Effective People, First Things First, and the Best of the Most Renowned Leadership Teacher of our Time”, p.455, Mango Media Inc.