SHIBY. B; REEN PAUL. Study on a Compact and High Speed 4-bit BCD Adder. Journal of Electronic Design Engineering, [S. l.], v. 2, n. 2, p. 27–37, 2016. Disponível em: http://matjournals.co.in/index.php/JOEDE/article/view/6792. Acesso em: 10 apr. 2025.