Kumar, S. (2018). Courgeous leadership: The missing link to creating a lean culture of excellence. Routledge.
Chicago-čujuhus (17. p.)Kumar, Sumeet. Courgeous Leadership: The Missing Link to Creating a Lean Culture of Excellence. New York: Routledge, 2018.
MLA-čujuhus (9. p.)Kumar, Sumeet. Courgeous Leadership: The Missing Link to Creating a Lean Culture of Excellence. Routledge, 2018.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.