HONG LOAN, T.; QUY TRUC, P.; NGUYEN PHUONG, D.; AI KHANH, T.; THIEN THANH, T.; DANG HOANG, T. STUDY ON THE BACK SCATTERING GAMMA SPECTRA OF HPGE DETECTOR BY USING MCNP CODE. Science and Technology Development Journal, v. 11, n. 6, p. 61-66, 30 jun. 2008.