זיוה דינה
21.05.2015
08.05.2015
http://www.youtube.com/watch?v=q3d1SwUXMc0
06.02.2011
http://www.ynet.co.il/articles/0,7340,L-3997146,00.html
http://cms.education.gov.il/educationcms/applications/mankal/etsmedorim/4/4-1/horaotkeva/k-2008-3a-4-1-3.htm