ERLINA HALAWA; SWINGLY PURBA. APLIKASI WATERMARKING DENGAN METODE DISCRETE COSINE TRANSFORM (DCT). Jurnal Sains dan Teknologi ISTP, [S. l.], v. 18, n. 2, p. 142–148, 2023. DOI: 10.59637/jsti.v18i2.219. Disponível em: https://ejurnal.istp.ac.id/index.php/jsti/article/view/219. Acesso em: 23 jul. 2025.