Leuangtakoun, S., 		Hong, B., 		Van Loat, B., & 		Cuong, P.
2018 Sep  5.  Determination of Natural Radioactivity  in Soil Samples around Gold Mining Area in Khamkeut District, Bolikhamxay Province,Laos Using Gamma Ray Spectrometer with NaI (Tl) Detector. VNU Journal of Science: Mathematics - Physics. [Online] 34:3