since you are looking for social science paper of Goa board of 2012 it is a quiet old and past paper so it is quite difficult to get it soon. But you can search it online Google and get the social science paper 2012 of Goa board. If you do not get then you can go offline and visit to any of the nearest store for Book Stall where second hand books and previous year question papers are being sold. If you do not get there also then you can visit LinkedIn and ID search for the students who have appeared for the same examination and request them to give the Social Science paper of 2012 of Goa board. Good luck.