http://reply.papertrans.cn/3/266/26515/26515-11.png
Submitted on: 01 May 2021.
Revised on: 23 May 2021.
Accepted on: 14 June 2021.
Retos-Revista de Ciencias de la Administracion y Economia
Submitted on: 17 November 2008.
Revised on: 20 December 2008.
Accepted on: 16 January 2009.
NULL
http://reply.papertrans.cn/3/266/26515/26515-14.png
http://reply.papertrans.cn/3/266/26515/26515-15.png
http://reply.papertrans.cn/3/266/26515/26515-16.png
Submitted on: 08 January 1998.
Revised on: 06 February 1998.
Accepted on: 14 February 1998.
Retos-Revista de Ciencias de la Administracion y Economia
http://reply.papertrans.cn/3/266/26515/26515-18.png
http://reply.papertrans.cn/3/266/26515/26515-19.png
Submitted on: 16 April 2008.
Revised on: 12 May 2008.
Accepted on: 20 May 2008.
Retos-Revista de Ciencias de la Administracion y Economia