Pradhan, M., B. Bhusal, P. Bhattarai, P. Shakya, B. K.C., and M. Bajracharya. “A Study on Statistical Recurrence of Some Distinguishing Features of Handwritings and Signatures”. Scientific World, vol. 13, no. 13, Aug. 2020, pp. 37-41, doi:10.3126/sw.v13i13.30505.