1. Agresti, A., 1996. An Introduction to Categorical Data Analysis. Wiley, New York.
2. An application of generalised linear modelling to the analysis of traffic accidents;Amis;Traff. Eng. Control,1996
3. Berhanu, G., 2000. Effects of Road and Traffic Factors on Road Safety in Ethiopia. Dr.-Ing. Dissertation, Norwegian University of Science and Technology, Trondheim, Norway.
4. Regression based tests for overdispersion in the Poisson model;Cameron;J. Econometr.,1990
5. Chow, L.-F., 1997. Cost-effectiveness analysis of safety for horizontal curves on two-way, tow-lane rural highways. In: Proceedings of the Paper Presented to the Institute of Transport Engineers for the 1997 Past President Student Paper Competition.