SURJEET SINGH. Sustainable Housekeeping Practices in 4- and 5-Star Hotels: Strategies for Energy Conservation and Waste Reduction in Uttarakhand. Journal of Informatics Education and Research, [S. l.], v. 5, n. 4, 2025. Disponível em: http://jier.org/index.php/journal/article/view/3557. Acesso em: 3 mar. 2026.