Ghuzlan, K.A., G. AL-Khateeb, Abu Damrah, A, “Using oil shale ash waste as a modifier for asphalt binders", Journal of Material Cycles and Waste Management, Volume 15, Issue 4, 2013. pp 522-529. ISSN: 1438-4957 (Print) 1611-8227 (Online). DOI: 10.1007/s10163-013-0135-8