Nafiz, M. F.; Kartini, D.; Faisal, M. R.; Indriani, F.; Saragih, T. H. Automated Detection of COVID-19 Cough Sound Using Mel-Spectrogram Images and Convolutional Neural Network. J. Ilm. Tek. Elektro Komput. Dan Inform 2023, 9, 535-548.