Zamzami, Elviawaty Muisa, Septi Hayanti, and Erna Budhiarti Nababan. 2021. “Diagonal Based Feature Extraction and Backpropagation Neural Network in Handwritten Batak Toba Characters Recognition”. Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control 6 (2). https://doi.org/10.22219/kinetik.v6i2.1212.