Napitupulu S, Ryan Revaldo Siagian, Ramli Simanullang, Kelvin Daniel Manalu, Conglii Fao Silalahi. Implementation of DCT Based Steganography Algorithm to Hide Information in Images. Login [Internet]. 2024Dec.25 [cited 2025Jul.31];18(02):120-6. Available from: http://login.seaninstitute.org/index.php/Login/article/view/115