Mathur, Shweta, and Kavita Khanna. “Sustainability Practices As a Competitive Edge in Five Star Hotels of Delhi: A Study on manager’s Perception”. International research journal of management, IT and social sciences 4, no. 6 (November 30, 2017): 1–9. Accessed July 16, 2024. https://sloap.org/journals/index.php/irjmis/article/view/5.