Submitted on: 24 December 2000.
Revised on: 20 February 2001.
Accepted on: 05 April 2001.
___________________Bordon-Revista de Pedagogia---SOC ESPANOLA PEDAGOGIA
Submitted on: 13 December 2002.
Revised on: 16 March 2003.
Accepted on: 14 May 2003.
___________________Bordon-Revista de Pedagogia---SOC ESPANOLA PEDAGOGIA
Submitted on: 17 July 2006.
Revised on: 23 October 2006.
Accepted on: 08 November 2006.
___________________Bordon-Revista de Pedagogia---SOC ESPANOLA PEDAGOGIA
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Submitted on: 23 December 2015.
Revised on: 10 March 2016.
Accepted on: 29 March 2016.
___________________Bordon-Revista de Pedagogia---SOC ESPANOLA PEDAGOGIA
Submitted on: 03 July 2019.
Revised on: 20 October 2019.
Accepted on: 11 November 2019.
___________________Bordon-Revista de Pedagogia---SOC ESPANOLA PEDAGOGIA
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Submitted on: 23 November 2008.
Revised on: 06 February 2009.
Accepted on: 16 March 2009.
___________________Bordon-Revista de Pedagogia---SOC ESPANOLA PEDAGOGIA
Submitted on: 05 November 2000.
Revised on: 31 January 2001.
Accepted on: 21 March 2001.
___________________Bordon-Revista de Pedagogia---SOC ESPANOLA PEDAGOGIA
Submitted on: 23 May 2008.
Revised on: 04 August 2008.
Accepted on: 20 August 2008.
___________________Bordon-Revista de Pedagogia---SOC ESPANOLA PEDAGOGIA