Sumarti, H., Sabrina, Q. ., Triana, D. ., Septiani, F. and Rahmani, T. P. D. (2022) “Identification of COVID-19 Based on Features Texture Histogram and Gray Level Co-Occurrence Matrix (GLCM) Using K-Means Clustering Methods in Chest X-Ray Digital Images”, Jurnal Penelitian Fisika dan Aplikasinya (JPFA), 13(1), pp. 51–66. doi: 10.26740/jpfa.v13n1.p51-66.