Nasution, Torkis. “Segmentasi Citra Digital Berbasis Clustering Menggunakan Deteksi Tepi Sobel”. SATIN - Sains dan Teknologi Informasi 1, no. 2 (July 31, 2018): 15-27. Accessed June 21, 2025. http://36.67.250.229/index.php/satin/article/view/320.