Simarmata, Simon. “Deteksi Akurasi Tanda Tangan Menggunakan Metode Support Vector Machine Dan Zernike Moment: Studi Kasus Di SMA Harapan Bangsa”. Innovative: Journal Of Social Science Research, vol. 3, no. 3, Aug. 2023, pp. 9880-8, http://j-innovative.org/index.php/Innovative/article/view/3322.