MATHUR, S.; KHANNA, K. 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, [S. l.], v. 4, n. 6, p. 1–9, 2017. Disponível em: https://www.sloap.org/journals/index.php/irjmis/article/view/5. Acesso em: 10 may. 2026.