T. VENKAT NARAYANA RAO, D.; SAI LAKSMI , A. Decoding Captcha using Machine Learning for Identifying Criminal Attempts. International Journal on Future Revolution in Computer Science & Communication Engineering, [S. l.], v. 5, n. 1, p. 61 –, 2019. Disponível em: http://www.ijfrcsce.org/index.php/ijfrcsce/article/view/1836. Acesso em: 3 may. 2024.