Ahmed, J., A. Musa, D. Hossain, M. Rahim, A. Shaheen, and K. Uddin. “Extensively Drug-Resistant (XDR) Tuberculosis: A Review”. BIRDEM Medical Journal, vol. 1, no. 1, Oct. 2012, pp. 30-36, doi:10.3329/birdem.v1i1.12386.