??????, ?????????? ?????, ??? . 2013. ??????????-??????????? ???????. ??? 2013 ?.. ?????. http://www.parliament.bg/pub/NCIOM/20130715014554Obshtestveno-politicheski_Naglasi_July-2013.pdf.

??????, ?????????? ?????, ??? . 2012. ??????????-??????????? ???????. ???????? 2012 ?.. ?????: ?????????? ?????? ?? ????????? ?? ???????????? ??????. http://www.parliament.bg/pub/NCIOM/Bul-02-2012_press.pdf.