Paitoon Tawsagul. (1998) Beam incidence and surface dose for 6 MV medical linear accelerator. Mahidol University:ม.ป.ท.Paitoon Tawsagul. 1998. Beam incidence and surface dose for 6 MV medical linear accelerator. ม.ป.ท.:Mahidol University;Paitoon Tawsagul. Beam incidence and surface dose for 6 MV medical linear accelerator. ม.ป.ท.:Mahidol University, 1998. Print.