1. AASHTO TP4, 2000. Method of preparing and determining the density of hot mix asphalt. Washington, DC: AASHTO Standard. Available from: www.aashto.org.
2. Anderson, M., 2002. Test to assess the potential for moisture damage in asphalt mixtures. Houston, TX: Asphalt Institute Spring Meeting Report.
3. Arizona Department of Transportation, 2006. Use of NDT equipment for construction quality control of hot mix asphalt pavements. Phoenix: Arizona Department of Transportation, Research Report 574.
4. ASTM C215, 2008. Standard test for fundamental transverse longitudinal and torsional frequencies of concrete specimen. West Conshohocken, PA: ASTM Standard. Available from: www.astm.org.