“Penentuan Nilai Faktor Mesin Pesawat Sinar-X Radiografi Digital Merek Shimadzu Di RSUD Dr. Kanujoso Djatiwibowo Balikpapan”. Progressive Physics Journal, vol. 1, no. 1, Jan. 2020, pp. 29-39, https://doi.org/10.30872/ppj.v1i1.563.