Kar, A. K., Ilavarasan, P. V., Gupta, M., Dwivedi, Y. K., Mäntymäki, M., Janssen, M., . . . Al-Sharhan, S. (2020). Digital Nations – Smart Cities, Innovation, and Sustainability. Springer International Publishing.

Kar, Arpan Kumar, P. Vigneswara Ilavarasan, M.P Gupta, Yogesh K. Dwivedi, Matti Mäntymäki, Marijn Janssen, Antonis Simintiras, ja Salah Al-Sharhan. Digital Nations €� Smart Cities, Innovation, and Sustainability. Springer International Publishing, 2020.

Kar, Arpan Kumar, et al. Digital Nations €� Smart Cities, Innovation, and Sustainability. Springer International Publishing, 2020.