Green, E, et al. “Drug-Susceptibility Patterns of <i>Mycobacterium tuberculosis< i> In Mpumalanga Province, South Africa: Possible Guiding Design of Retreatment Regimen”. Journal of Health, Population and Nutrition, vol. 28, no. 1, Mar. 2010, pp. 7-13, doi:10.3329/jhpn.v28i1.4518.