p. 39-47; Submitted by Ana Valéria de Jesus Moura (anavaleria_131@hotmail.com) on 2011-08-11T13:44:53Z No. of bitstreams: 1 v15nspea04.pdf: 245775 bytes, checksum: 2b30cf53544d7e1082b975f9c0d5c63a (MD5); Made available in DSpace on 2011-08-11T13:44:53Z (GMT). No. of bitstreams: 1 v15nspea04.pdf: 245775 bytes, checksum: 2b30cf53544d7e1082b975f9c0d5c63a (MD5) Previous issue date: 2006; O estudo pretendeu compreen...