Ramadhan, R., J. Sari, and I. Ningrum. “Identification of Authenticity and Nominal Value of Indonesia Banknotes Using Fuzzy KNearest Neighbor Method”. IJNMT (International Journal of New Media Technology), Vol. 6, no. 1, Aug. 2019, pp. 32-37, doi:https://doi.org/10.31937/ijnmt.v6i1.989.