อักษร พ. (2007) “Factors Influencing Treatment Outcomes in Pulmonary Tuberculosis in Sanpatong Hospital,Chiang Mai Province”, Disease Control Journal. Nonthaburi, TH, 33(4), pp. 269–278. available at: https://he01.tci-thaijo.org/index.php/DCJ/article/view/155988 (accessed: 1 September 2026).