Rubistar4teacher Giselda Costa | September 12, 2016 | | No Comments http://rubistar.4teachers.org/index.php About The Author giseldacosta Profª. Drª Giselda dos Santos Costa---Instituto Federal do Piauí - IFPI - Brasil Campus Teresina Zona Sul--/---"Curriculum"--E-mail:--giseldacostas@hotmail.com