Validasi perangkat lunak in house treatment planning system TPS berkas foton pesawat teleterapi cobalt 60 = Validation of in house treatment planning system tps software for photon beams of cobalt 60 teletherapy unit / Intan Apriliani Syaridatul Mu’minah - Intan Apriliani Syaridatul Mu’minah, author (2015)