By Visscher Adrie   Witziers Bob   in British Educational Research Journal

ISSN:1469-3518|30|6|785-800

Routledge Ltd‎(2004)‎

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By Krüger Meta   Witziers Bob   Sleegers Peter   in School Effectiveness and School Improvement

ISSN:0924-3453|18|1|1-20

Routledge Ltd‎(2007)‎

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By Imants Jeroen   Sleegers Peter   Witziers Bob   in School Leadership and Management

ISSN:1364-2626|21|3|289-307

Routledge Ltd‎(2001)‎

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By Witziers Bob   Sleegers Peter   Imants Jeroen   in School Leadership and Management

ISSN:1364-2626|19|3|293-304

Routledge Ltd‎(1999)‎

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By Visscher Hans Luyten   * Adrie   Witziers Bob   in School Effectiveness and School Improvement

ISSN:0924-3453|16|3|249-279

Routledge Ltd‎(2005)‎

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