Aggarwal, R., H. Singh, M. S. Gupta, J. S. Hans, and K. Kaur. “Comparative Study of Azathioprine and Cyclosporin in Rheumatoid Arthritis – a Sixteen Weeks Follow-up Study”. Medical Journal of Indonesia, Vol. 11, no. 3, Aug. 2002, pp. 153-7, doi:10.13181/mji.v11i3.66.