Putra, I Kadek Nurcahyo, et al. “Signature Identification Using Digital Image Processing and Machine Learning Methods”. Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi Dan Komputer, vol. 7, no. 1, June 2023, pp. 29-37, doi:10.31961/eltikom.v7i1.618.