Kittipayak, S., P. Lodea, and S. Panjaudomrat. “Optimizing the minimum detectable difference of chest protocol digital radiography system by V-shaped line gauge phantom and Taguchi analysis”. The Thai Journal of Radiological Technology, vol. 49, no. 1, May 2024, pp. 14-25, https://he02.tci-thaijo.org/index.php/tjrt/article/view/267822.