Tidarut Vichaidid, Thongchai Soodprasert, Natnalin Sastri, Chutima Oopathum, Pichet Limsuwan. Determination of U, Th and K in Sediments and Fossil Collected from Mae Moh Mine Using Gamma-Ray Spectrometry and Neutron Activation Analysis (NAA). Agr. Nat. Resour. [internet]. 2008 Dec. 31 [cited 2026 Oct. 10];42(5):333-9. available from: https://li01.tci-thaijo.org/index.php/anres/article/view/244616