Hassan, R., Salek, S., Hasan, M. K., Lam, M. C., & Wan Hussain, W. M. H. (2018). Mobile User Perception Factors for Express Bus Safety Journey Management System: A Survey Analysis. International Journal on Advanced Science, Engineering and Information Technology, 8(4-2), 1803–1809. https://doi.org/10.18517/ijaseit.8.4-2.6814