Retrieved 5 November 2013 ↑ the official web site of the municipality, Kostajnica/Костајница. ↑ official name of region Archived 2015-06-07 at the Wayback Machine. ↑ http://www.opstina-kostajnica.com/ ↑ See bs:Demografija Bosanskog Novog ↑ Link text, additional text.