A. Choudhary, S. Bansal, P. Sharma, and A. Prashaant, “Quick Insight into the Indian Railways Passengers’ Perception on the SERVICE QUALITY – with respect to the Delhi Division”, IJET, vol. 7, no. 4.25, pp. 327–329, Nov. 2018, doi: 10.14419/ijet.v7i4.25.27008.