ABD HALIM, M. R.; MAHDIN, H.; YAACOB, S. S. Web Transcript Verification Using Check Digit as Secure Number. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), [S. l.], v. 9, n. 2-4, p. 101–105, 2017. Disponível em: https://jtec.utem.edu.my/jtec/article/view/2369. Acesso em: 3 may. 2024.