Paavana, C. D., Gayithri, R. Kavya, and S. Sreelalitha. “A Study On Foreign Direct Investment On Health Care Sector Towards Columbia Asia Hospital”. International Journal of Research in Engineering, Science and Management 4, no. 3 (March 9, 2021): 6–8. Accessed April 20, 2025. https://journal.ijresm.com/index.php/ijresm/article/view/542.