Angeli, Alvin, and Tukino Tukino. “RANCANG BANGUN GAME SUDOKU ANDROID BERBASIS FLUTTER”. Computer Based Information System Journal 12, no. 1 (March 27, 2024): 52–62. Accessed May 9, 2024. https://ejournal.upbatam.ac.id/index.php/cbis/article/view/8249.