[Box, G. E. P. & Cox, D. R. (1964) “An Analysis of Transformations”. Journal of the Royal Statistical Society, Series B, 1964, 26, 211-252.10.1111/j.2517-6161.1964.tb00553.x]Search in Google Scholar
[Gujrati D., (2004) Basic Econometrics, 4th Edition, The Mc-Graw-Hill Companies.]Search in Google Scholar
[Fuchs, V., (1974) Some economic aspects of mortality in developed countries. In: Perlman, M. (Ed). The Economics of Health and Medical Care. Macmillan, London, 174-193.10.1007/978-1-349-63660-0_11]Open DOISearch in Google Scholar
[Jacobs G. D. and Hutchinson P. (1973) A study of accident rates in developing countries. TRRL Report LR546. Transport and Road Research Laboratory.]Search in Google Scholar
[Jamal R. M. Ameen, and Jamil A. Naji, (2001) Causal models for road accident fatalities in Yemen. Accident Analysis and Prevention 33.]Search in Google Scholar
[Kopits, E. and Cropper, M. (2005) Traffic fatalities and economic growth. Accident Analysis and Prevention, 37, 169-178.10.1016/j.aap.2004.04.00615607288]Search in Google Scholar
[Kopits, E., Cropper. M., (2008) Why have traffic fatalities declined in industrialized countries for pedestrians and vehicle occupants. Journal of Transport and Economics and Policy 42, 129-154. ]Search in Google Scholar
[Microsoft Office Excel (2007), www.microsoft.com. Cited on25/2/2016. ]Search in Google Scholar
[Mohan, D. et el. (2009) “Road Safety in India: Challenges and Opportunities”, University of Michigan Transportation Research Institute. ]Search in Google Scholar
[Montgomery, D. C., Peck, E. A. and Vining, G. G. (2001) Introduction to Linear Regression Analysis. 3rd Ed, NY, NY: John Wiley & Sons.]Search in Google Scholar
[Shapiro, S. S.; Wilk, M. B. (1965) “Analysis of Variance test for normality (Complete samples)”. Biometrika 52 (3-4):591-611.10.1093/biomet/52.3-4.591]Open DOISearch in Google Scholar
[Smeed R. J., (1949) Some statistical aspects of road safety research. J. Roy. Stat. Soc. Ser. A 112, 1-23. ]Search in Google Scholar
[World Bank Site: http://data.worldbank.org/country/yemen-republic. Cited on 14/2/2016.]Search in Google Scholar
[Yearly traffic accident statistics (1991-2013) published by the Central Statistical Organization, Sana’a, Republic of Yemen: Ministry of Planning and International Cooperation, www.cso-yemen.org. Cited in 2015. ]Search in Google Scholar
[http://en.m.wikipedia.org/wiki/Prais%E2%80%93Winsten_esttimation. Cited on 15/1//2016.]Search in Google Scholar
[http://en.m.wikipedia.org/wiki/Cochrane%E2%80%93Orcutt_estimation. Cited on 3/1/2016.]Search in Google Scholar
[SPSS 20 User Guide, http://public.dhe.ibm.com/software/analytics/spss/documentation/amos/20.0/en/Manuals/IBM_SPSS_Amos_User_Guide.pdf . Cited on 14/2/2016. Cited on 5/2/2016.]Search in Google Scholar