A.K.Sharma, V. K. Gahlot, P. Kalla, and P. P. Dahale. “MaaS: Opportunities for Improving Mobility Services”. Helix - The Scientific Explorer | Peer Reviewed Bimonthly International Journal 10, no. 01 (February 29, 2020): 149-157. Accessed April 19, 2024. https://helixscientific.pub/index.php/home/article/view/75.