Ajar Rohmanu, Andi Jumardi, Arief Maulana, and Diko Muhammad Adam. “Analisis Citra Digital Printed Circuit Board Dan Gerber Data Menggunakan Deteksi Tepi Canny Dan Sobel”. Proceedings of the Informatics Conference, vol. 1, no. 1, Dec. 2020, pp. 34-40, https://ojs.journals.unisel.edu.my/index.php/icf/article/view/16.