Apichart Siriwitpreecha และ Pongphanot Rindhatayathon. (2020) Calculation for Graphite Cavity Ion Chamber Response to Cs-137 Gamma Ray using EGSnrc Monte Carlo Code. RANGSIT UNIVERSITY:ม.ป.ท.Apichart Siriwitpreecha และ Pongphanot Rindhatayathon. 2020. Calculation for Graphite Cavity Ion Chamber Response to Cs-137 Gamma Ray using EGSnrc Monte Carlo Code. ม.ป.ท.:RANGSIT UNIVERSITY;Apichart Siriwitpreecha และ Pongphanot Rindhatayathon. Calculation for Graphite Cavity Ion Chamber Response to Cs-137 Gamma Ray using EGSnrc Monte Carlo Code. ม.ป.ท.:RANGSIT UNIVERSITY, 2020. Print.