Ryu, Sungwoo; Choi, Pangil; Zhou, Wujun; Saraf, Sureel; Senadheera, Sanjaya; Hu, Jiong et al. Optimizing Concrete Pavement Type Selection Based on Aggregate Availability, report, September 2013; (https://texashistory.unt.edu/ark:/67531/metapth639677/m1/1/: accessed April 24, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .