Mahajanthavong, T., T. Prabsattroo, W. Kirisattayakul, S. Wongsanon, and W. Sudchai. “Assessment of the Entrance Skin Radiation Dose from the Digital Radiography in Srinagarind Hospital”. Srinagarind Medical Journal, vol. 36, no. 1, Jan. 2021, pp. 31-38, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/248656.