[1]
M. Sidiq, A. I. Basuki, D. Rosiyadi, I. Setiawan, Y. H. Siregar, and S. Sriyadi, “Secure protection for covid-19 infographic using blockchain and discrete cosine transform-singular value decomposition (DCT-SVD) watermarking”, INFOTEL, vol. 14, no. 2, pp. 93-100, May 2022.