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Submitted on: 12 July 2000.
Revised on: 02 August 2000.
Accepted on: 22 August 2000.
Trabajo Social---UNIV NACIONAL COLOMBIA, FAC CIENCIAS HUMANAS
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Submitted on: 14 August 2016.
Revised on: 08 September 2016.
Accepted on: 21 September 2016.
Trabajo Social---UNIV NACIONAL COLOMBIA, FAC CIENCIAS HUMANAS
Submitted on: 02 April 1998.
Revised on: 25 April 1998.
Accepted on: 17 May 1998.
Trabajo Social
Submitted on: 20 July 1998.
Revised on: 26 August 1998.
Accepted on: 12 September 1998.
Trabajo Social---UNIV NACIONAL COLOMBIA, FAC CIENCIAS HUMANAS
Submitted on: 16 May 2013.
Revised on: 20 June 2013.
Accepted on: 30 June 2013.
Trabajo Social---UNIV NACIONAL COLOMBIA, FAC CIENCIAS HUMANAS
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