Narawong, T., O. . Singusaha, S. . Sisai, A. . Mingmongkhonchai, P. . Runpo, K. . Worratammongkol, and K. . Namchim. “The Survey of Local Diagnostic Reference Levels (DRLs) for Administered Activity in Diagnostic Nuclear Medicine at Rajavithi Hospital”. The Thai Journal of Radiological Technology, vol. 46, no. 1, May 2021, pp. 1-7, https://he02.tci-thaijo.org/index.php/tjrt/article/view/249318.