D, Balaji, and Milton T. “A Study on Practices of Tour Operators and Development of Sustainable Tourism in Tamil Nadu”. International Journal of Psychosocial Rehabilitation 24, no. 4 (April 30, 2020): 9927–9937. Accessed December 18, 2025. https://www.psychosocial.com/index.php/ijpr/article/view/6909.