http://www.google.com.co/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CBsQFjAA&url=http%3A%2%2Fwww.cippsv.com%2Flibros%2FSexologia_Definicion_Esp.pdf&ei=0lk4VJekMtLAggSwk4G4Dw&usg=AFQjCNFv2brPvznbjDyXzGYtx4op5CvT-A
http://es.familydoctor.org/familydoctor/es/teens/puberty-sexuality/homosexuality-facts-for-teens.html