Manik, Josua Timotius, et al. “Validation of Varian Clinac IX Model on 6 MV Photon Beam Using Fast Monte Carlo Simulation”. Jurnal Ilmiah Teknik Elektro Komputer Dan Informatika, vol. 9, no. 4, Oct. 2023, pp. 951-8, doi:10.26555/jiteki.v9i4.27075.