Oktaviana, A. T., Prayogo, D., Ramadhan, M. N., Afiva, R., Nisa, Z., Lubis, A. S., Cahayaputri, O. T. and Ramadhan, M. R. (2024) “Ring Artifact on SPECT Image due to Arbitrary Position of PMT Malfunction”, KnE Life Sciences, 8(1), pp. 9–14. doi: 10.18502/kls.v8i1.15387.