Srisaenpang, Sompong, Maarten Elink Schuurman, Somdej Pinitsoontorn, Chingchai Methapat, Samai Kungsaworn, and Pichet Leelapanmetha. “Tool for Quality Control of Tuberculosis Sputum Smear Examinaiton in Peripheral Laboratories”. Srinagarind Medical Journal 11, no. 2 (November 20, 2013): 65–72. Accessed January 27, 2022. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13876.