Sidiq M, Basuki AI, Rosiyadi D, Setiawan I, Siregar YH, Sriyadi S. Secure protection for covid-19 infographic using blockchain and discrete cosine transform-singular value decomposition (DCT-SVD) watermarking. INFOTEL [Internet]. 31May2022 [cited 1Jul.2024];14(2):93-00. Available from: https://ejournal.ittelkom-pwt.ac.id/index.php/infotel/article/view/749