Manik, J. W. “Evaluation of the Suitability of the Collimated Field on the Mobile X-Ray Device: Evaluasi Kesesuaian Lapangan Kolimasi Pada Alat Mobile X-Ray”. Journal of Peat Science and Innovation, vol. 1, no. 1, June 2022, pp. 26-31, doi:10.59032/jpsi.v1i1.7321.