Submitted on: 10 April 2007.
Revised on: 12 June 2007.
Accepted on: 18 July 2007.
___________________DADOS-REVISTA DE CIENCIAS SOCIAIS
http://reply.papertrans.cn/1/72/7174/7174-22.png
http://reply.papertrans.cn/1/72/7174/7174-23.png
http://reply.papertrans.cn/1/72/7174/7174-24.png
http://reply.papertrans.cn/1/72/7174/7174-25.png
http://reply.papertrans.cn/1/72/7174/7174-26.png
http://reply.papertrans.cn/1/72/7174/7174-27.png
http://reply.papertrans.cn/1/72/7174/7174-28.png
Submitted on: 22 September 2011.
Revised on: 15 January 2012.
Accepted on: 04 March 2012.
___________________DADOS-REVISTA DE CIENCIAS SOCIAIS
Submitted on: 08 December 2016.
Revised on: 08 January 2017.
Accepted on: 13 February 2017.
___________________DADOS-REVISTA DE CIENCIAS SOCIAIS