Luong, Tung, Vien Do, Chuong Huynh, Da Nguyen, Tuyet Tran, Linh Nguyen, Loan Truong, Hao Le, and Lang Trinh. 2017. “Development of Full Spectrum Analysis (FSA) to Analyze the Gamma Backscattering on Concrete”. VNUHCM Journal of Natural Sciences 1 (T1), 96-105. https://doi.org/https://doi.org/10.32508/stdjns.v1iT1.437.