Loat, Bui, 		Leuangtakoun, Somsavath, 		Luu, Cao, 		Hong, Bui, 		Khang, Khong, 		Nghia, Nguyen, 		Ha, Nguyen, AND 		Duyen, Vu.
" Intrinsic Efficiency Calibration for Uranium Isotopic Analysis in Soil Samples" <em>VNU Journal of Science: Mathematics - Physics</em> [Online], Volume 33 Number 1 (15 March 2017)