3 1 50 JAMES M. KOUZES Primary Author REVYANI SJAHRIAL Primary Author RATRI MEDYA Primary Author WISNU C. KRISTIADJI Primary Author BARRY Z. POSNER Primary Author mixed material 9797415384 Jakarta Erlangga 2002 1_LEADERSHIP.jpg.jpg LYNDON SAPUTRA Primary Author ANTON ADIWIYOTO Primary Author JAMES M. KOUZES Primary Author BARRY Z. POSHNER Primary Author mixed material BATAM INTERAKSARA 1999 KOUZES_POSNER_LEADERSHIP_CHALLENGE.jpg.jpg JAMES M. KOUZES Primary Author BARRY Z. POSHNER Primary Author REVYANI SJAHRIAL Primary Author WISNU CHANDRA KRISTIAJI Primary Author mixed material 9789797415389 Jakarta Erlangga 2004 LEADERSHIP_3.jpg.jpg