machan bcs site eke tiyenawa
http://www.bcs.org/category/7815
habayi awurudu 3, 4 ka past papers witarayi tiyenne.
2000 wala idan papers http://www.freeexampapers.com/index.php/?location=%2Fbcs#bcs/Certificate menna metanin ganin. Wadipura past papers karana eka hugak hodai. Good luck bro !