Seyedabrishami, S. E., Ghouchanian Haghverdi, M., Mirza Boroujerdian, A., Fallah Zavareh, M. (2014). 'Analysis and Modeling Factors Effecting Helmet-use by Motorcycle Riders, a Case Study: City of Mashhad', Quarterly Journal of Transportation Engineering, 6(2), pp. 289-302.