(en) Michael A. Roberto, « Giving people voice », dans Why Great Leaders Don't Take Yes for an Answer : Managing for Conflict and Consensus, FT Press(en), , 304 p. (lire en ligne), p. 257
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(en) Donald Mosley, Donald Mosley, Jr. et Paul Pietri, Supervisory Management: The Art of Inspiring, Empowering, and Developing, Cengage Learning, , 528 p. (ISBN9780324421439, lire en ligne), p. 133
(en) Michael A. Roberto, « Giving people voice », dans Why Great Leaders Don't Take Yes for an Answer : Managing for Conflict and Consensus, FT Press(en), , 304 p. (lire en ligne), p. 257