IoT Based Virtual E-Learning System for Sustainable Development of Smart Cities. - Roy Setiawan; Maria Manuel Vianny Devadass; Regin Rajan; Dilip Kumar Sharma; Ngangbam Phalguni Singh; K. Amarendra; Rama Koteswara Rao Ganga; Ramkumar Raja Manoharan; V. Subramaniyaswamy 001; Sudhakar Sengan (J. Grid Comput., 2022)