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Submitted on: 04 August 2015.
Revised on: 31 August 2015.
Accepted on: 22 September 2015.
NULL
Submitted on: 14 May 2017.
Revised on: 23 June 2017.
Accepted on: 10 July 2017.
PERIPLO SUSTENTABLE---UNIV AUTONOMA ESTADO MEXICO, FAC TURISMO GASTRONOMIA
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Submitted on: 30 September 2001.
Revised on: 07 November 2001.
Accepted on: 05 December 2001.
NULL
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