Garg, Vipin, and Vijender Noonwal. “Impact of Online Travel Portals on Conventional Travel Agents: A Review”. Journal of Advanced Research in Operational and Marketing Management 5, no. 2 (January 6, 2023): 6-12. Accessed November 21, 2024. https://adrjournalshouse.com/index.php/Journal-OperationalMarketing-Mgt/article/view/1560.