Aggarwal, R., H. Singh, M. S. Gupta, J. S. Hans, and Kiranjit Kaur. 2002. “Comparative Study of Azathioprine and Cyclosporin in Rheumatoid Arthritis – a Sixteen Weeks Follow-up Study”. Medical Journal of Indonesia 11 (3), 153-7. https://doi.org/10.13181/mji.v11i3.66.