Yulianti, Ni Putu, Sutapa, Gusti Ngurah, DAN Astina, Kadek Yuda. " X-ray Beam Quality Conformity Test Using Half Value Layer (HVL) Aluminium Filter in Stationary X-ray Device at Academy Teknik Radiodiagnostik and Radioterapi Bali" BULETIN FISIKA [Online], Volume 24 Nomor 1 (17 October 2021)