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Grateful leadership : using the power of acknowledgement to engage all your people and achieve superior results
Umlas, Judith W., (2013)
Taking people with you : the only way to make big things happen
Novak, David, (2012)
Multipliers : how the best leaders make everyone smarter
Wiseman, Liz, (2010)
How I learned to let my workers lead
Stayer, Ralph, (2009)