RIZAK AI-RAMMAHI, A.M.H. On Application of Discrete Logarithms in Information - Hiding and Knapsack Problem with New Properties of Sk-Sets. Ibn AL-Haitham Journal For Pure and Applied Sciences, Baghdad, Iraq., v. 19, n. 2, p. 52–66, 2017. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/1571. Acesso em: 8 jul. 2025.