Lê QV, Nguyen HDK, Hoang DT, Phan LH, Tran TT, Chau VT. DETERMINATION OF RADIOACTIVITY BASED ON UNFOLDED GAMMA SPECTRA USING THE GRAVEL METHOD AND RESPONSE MATRIX FROM MCNP SIMULATION. TCKH ĐHSP TPHCM TPHCM [Internet]. 2026 Mar. 31 [cited 2026 Apr. 19];23(3). Available from: https://journal.hcmue.edu.vn/index.php/hcmuejos/article/view/5099