Verantwoordelijk Leiderschap Duurzaam Omgaan Met Organisaties En Jezelf Kessels Joseph Heftet / 2010 / Flamsk
Human Resource Development in a Knowledge Economy An Organizational View Harrison Rosemary Heftet / 2003 / Engelsk
Linking Practice and Theory The Pedagogy of Realistic Teacher Education Korthagen, Fred A.J. Heftet / 2001 / Engelsk
