Melody Beattie (2013). “Melody Beattie 4 Title Bundle: Codependent No More and 3 Other Best Sellers by Melody Beattie: A collection of four Melody Beattie best sellers”, Hazelden Publishing
Marci Shimoff, Carol Kline, Marianne Williamson (2012). “Love For No Reason: 7 Steps to Creating a Life of Unconditional Love”, p.49, Simon and Schuster