Khadka, D.K. et al. 2018. Identification of rpoB, gyrA and embB Gene Mutations in Mycobacterium Tuberculosis Isolates from Retreatment Tuberculosis Patients in Nepal. SAARC Journal of Tuberculosis, Lung Diseases and HIV/AIDS. 14, 2 (Mar. 2018), 39–50. DOI:https://doi.org/10.3126/saarctb.v14i2.19336.