S. Riad, H., N. Zohny, H., M. Ibrahim, W., & E. Elsayed, M. (2018). Enhance Safety Performance through Quantitative and Qualitative Analysis of Accidents in Egyptian National Railway. American Scientific Research Journal for Engineering, Technology, and Sciences, 43(1), 61-75. https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/4100