Rana, Shivika, Tanvi Rana, Bhoomika Mahato, and Rajeev Gupta. “Business Model and Sustainability”. International Journal of Research in Engineering, Science and Management 4, no. 2 (February 19, 2021): 67–72. Accessed May 3, 2024. https://journal.ijresm.com/index.php/ijresm/article/view/504.