p. 231-238; Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2014-04-03T11:40:25Z No. of bitstreams: 1 0716-97602013000300002.pdf: 688829 bytes, checksum: 6492b11b944a59c537060e7aa3da6037 (MD5); Made available in DSpace on 2014-04-03T11:40:26Z (GMT). No. of bitstreams: 1 0716-97602013000300002.pdf: 688829 bytes, checksum: 6492b11b944a59c537060e7aa3da6037 (MD5) Previous issue date: 2013; This study describes ...