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Submitted on: 26 March 2002.
Revised on: 21 April 2002.
Accepted on: 13 May 2002.
___________________Anuario Turismo y Sociedad---UNIV EXTERNADO COLOMBIA
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Submitted on: 28 March 2000.
Revised on: 07 June 2000.
Accepted on: 29 July 2000.
___________________Anuario Turismo y Sociedad---UNIV EXTERNADO COLOMBIA
Submitted on: 08 March 2017.
Revised on: 10 May 2017.
Accepted on: 21 June 2017.
___________________Anuario Turismo y Sociedad---UNIV EXTERNADO COLOMBIA
Submitted on: 07 March 2004.
Revised on: 20 May 2004.
Accepted on: 06 June 2004.
___________________Anuario Turismo y Sociedad---UNIV EXTERNADO COLOMBIA
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