Perbandingan Metode Roberts dan Sobel dalam Mendeteksi Tepi Suatu Citra Digital. Jurnal EurekaMatika, [S. l.], v. 1, n. 1, p. 1–16, 2013. Disponível em: https://ejournal-science.upi.edu/jem/article/view/30. Acesso em: 1 jul. 2026.