- $13.52World Report on Road Traffic Injury Prevention by A. A., Scurfield, R., Peden, M., Jarawan, E., Sleet, D. HyderBetter World Books
- $5.26Global Dumping Ground : The International Traffic in Hazardous Waste by Bill, Center for Investigative Reporting Staff MoyersBetter World Books
- $5.99Paid Traffic Basics ReportAmazon