SHARANYA.P; VIJAYA SHARON.A; VIJAY.S; DHIVYA.P. CAPTCHA AS A GRAPHICAL PASSWORD –MULTILEVEL SECURITY PRIMITIVE . International journal of intellectual advancements and research in engineering computations, [S. l.], v. 2, n. 3, p. 33–36, 2015. DOI: 10.61096/ijiarec.v2.iss3.2014.33-36. Disponível em: https://ijiarec.com/ijiarec/article/view/1261. Acesso em: 17 apr. 2026.