Das, Prosenjit, and Arundhati Datta. “Performance Evaluation of Indian Information Technology-Enabled Services (ITeS) Industry: An Application of Two-Stage Data Envelopment Analysis”. International Journal of Advances in Management and Economics (January 5, 2018). Accessed May 7, 2024. https://managementjournal.info/index.php/IJAME/article/view/49.