Kumar, S. (2018). Courgeous leadership: The missing link to creating a lean culture of excellence. Routledge.
Chicago-referens (17:e uppl.)Kumar, Sumeet. Courgeous Leadership: The Missing Link to Creating a Lean Culture of Excellence. New York: Routledge, 2018.
MLA-referens (9:e uppl.)Kumar, Sumeet. Courgeous Leadership: The Missing Link to Creating a Lean Culture of Excellence. Routledge, 2018.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.