Sumiti Narayan Tewari , Anita Shukla. “E-Learning: An Effective Virtual Way to Understand the Physical World”. International Journal of Emerging Trends in Science and Technology 4, no. 08 (August 30, 2017): 5665–5668. Accessed December 23, 2024. http://ijetst.in/index.php/ijetst/article/view/1319.