Sah, R. K., D. Bhatta, G. Ghimire, B. Kandel, B. Tiwari, and J. Sherchand. “Evaluation of Nitrate Reductase Assay for Rapid Detection of Drug Resistant Tuberculosis”. SAARC Journal of Tuberculosis, Lung Diseases and HIV/AIDS, vol. 9, no. 2, Apr. 2013, pp. 4-8, doi:10.3126/saarctb.v9i2.7971.