Guy Itzchakov and Avraham N. Kluger, «The Power of Listening in Helping People Change», Harvard Business Review, May 17, 2018, .
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E. M. Forster, Aspects of the Novel (New York: Houghton Mifflin, 1927/1956); see also Graham Wallas, The Art of Thought (Kent, England: Solis Press, 1926/2014).
