http://reply.papertrans.cn/3/293/29206/29206-11.png
Submitted on: 04 April 2014.
Revised on: 17 April 2014.
Accepted on: 14 May 2014.
Tec Empresarial---INST TECNOLOGICO COSTA RICA
Submitted on: 27 April 1998.
Revised on: 01 June 1998.
Accepted on: 24 June 1998.
Tec Empresarial
http://reply.papertrans.cn/3/293/29206/29206-14.png
Submitted on: 03 October 2008.
Revised on: 12 November 2008.
Accepted on: 27 November 2008.
Tec Empresarial---INST TECNOLOGICO COSTA RICA
http://reply.papertrans.cn/3/293/29206/29206-16.png
Submitted on: 09 September 2018.
Revised on: 27 September 2018.
Accepted on: 07 October 2018.
Tec Empresarial---INST TECNOLOGICO COSTA RICA
http://reply.papertrans.cn/3/293/29206/29206-18.png
http://reply.papertrans.cn/3/293/29206/29206-19.png
Submitted on: 18 February 2015.
Revised on: 01 March 2015.
Accepted on: 14 March 2015.
Tec Empresarial---INST TECNOLOGICO COSTA RICA