Second International Handbook of Educational Leadership and Administration Leithwood Kenneth A. Innbundet / 2002 / Engelsk
Second International Handbook of Educational Leadership and Administration Leithwood Kenneth A. Heftet / 2012 / Engelsk
International Handbook of Educational Leadership and Administration Leithwood Kenneth A. Innbundet / 1996 / Engelsk
International Handbook of Educational Leadership and Administration Leithwood Kenneth A. Heftet / 2011 / Engelsk
