Setiadikarunia D, Saragih RA, Susanthi Y, Liu V. Watermarking Citra Digital menggunakan Contourlet Transform, Discrete Cosine Transform dan Noise Visibility Function. TELKA [Internet]. 23 Mei 2022 [dikutip 15 Desember 2025];8(1):24-35. Tersedia pada: https://telka.ee.uinsgd.ac.id/TELKA/article/view/telka.v8n1.24-35