1. American trucking associations. reports, trends & statistics [cited May 2016]. URL: http://www.trucking.org/News_and_Information_Reports.aspx.
2. M. Margreta, C. Ford, R. Grube, Us freight on the move: highlights from the 2012 commodity flow survey preliminary data, US Census Bureau, US Dept. of Transportation, Rep. OST.
3. National center for statistics and analysis. (2015, revised june), traffic safety facts 2013 data, Tech. Rep. DOT HS 812 150, National Highway Traffic Safety Administration, June 2015. URLhttp://www-nrd.nhtsa.dot.gov/Pubs/812150.pdf.
4. Safety management for heavy vehicle transport: a review of the literature;Mooren;Saf. Sci.,2014
5. Effectiveness of health promotion programmes for truck drivers: a systematic review;Ng;Health Educ. J.,2015