SINGH, S.; TOMAR, R.; CHAUHAN, D. Single CFTA Based Current-Mode Universal Biquad Filter. The Journal of Engineering Research [TJER], [S. l.], v. 13, n. 2, p. 172–186, 2016. DOI: 10.24200/tjer.vol13iss2pp172-186. Disponível em: https://journals.squ.edu.om/index.php/tjer/article/view/180. Acesso em: 23 apr. 2024.