Zerdo Z, Tsalla T, Shibru T, Trifa ZM. Predictors of Smear-Positive Pulmonary Tuberculosis in Southern Ethiopia: unmatched case control study. IJSBAR. 2015;24(4):11-22. Accessed October 7, 2025. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/4445