ALKALLAK, Israa N. Using Magic Square of Order 3 To Solve Sudoku Grid Problem. Ibn AL-Haitham Journal For Pure and Applied Sciences, Baghdad, Iraq., v. 26, n. 1, p. 358–365, 2017. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/545.. Acesso em: 22 nov. 2024.