WANDAPRANATA, J.; HANSUN, S. Pengembangan Modul Autentikasi Captcha Berbasis Gambar dengan Algoritma Flood Fill. Journal of Information Systems Engineering and Business Intelligence, [S. l.], v. 3, n. 1, p. 1–7, 2017. DOI: 10.20473/jisebi.3.1.1-7. Disponível em: https://e-journal.unair.ac.id/JISEBI/article/view/2740. Acesso em: 18 nov. 2024.