Khalid, R., V. . Conjobeeharry, A. . Saif Sanai, C. T. H. Brown, H. Nabipour Afrouzi, and A. Hassan. “The Feasibility and Analysis of Electric Taxi Vehicles in Singapore: A Review”. Future Energy, vol. 2, no. 3, Jan. 2023, pp. 38-48, https://fupubco.com/fuen/article/view/76.