Khadeza, K., Kamal, A., Naima, M. and Shamsuzzaman, S. (2012) “Quality assessment of sputum for Acid Fast Bacilli(AFB) test in microbiology laboratories before and after implementation of Standard Operating Procedure (SOP): a comparative study”, Bangladesh Journal of Medical Science, 11(1), pp. 51–56. doi: 10.3329/bjms.v11i1.9824.