als.tdl.org/absel/index.php/absel/article/view/2298 . Luft, Joseph (1972). Einfuhrung in die Gruppendynamik . Ernst Klett Verlag. Hase, Steward; Alan Davies; Bob Dick (1999). The Johari Window and the Dark Side of Organisations . Southern Cross University . Handy, Charles (2000). 21 Ideas for Managers . San Francisco: Jossey-Bass . ISBN 0-14-027510-X . External links [ edit ] Wikimedia Commons has media related to Johari window .