//-->
New art of managing people : person-to-person skills, guidelines and techniques every manager needs to guide, direct and motivate the team
Hunsaker, Phillip L., (2009)
Feedbackinstrumente im Unternehmen : Grundlagen, Gestaltungshinweise, Erfahrungsberichte
Jöns, Ingela, (2018)
201 ways to turn any employee into a star performer
Hawley, Casey Fitts, (2004)