J. T. Manik, A. Okselia, D. G. Gaspersz, and F. Haryanto, “Validation of Varian Clinac iX Model on 6 MV Photon Beam Using Fast Monte Carlo Simulation”, J. Ilm. Tek. Elektro Komput. Dan Inform, vol. 9, no. 4, pp. 951–958, Oct. 2023.