TARUNKUMAR, Huirem; RANJAN, Ashish; MEITEI PHEIROIJAM, Nonglen. First Order and Second Order Universal Filter Using Four Terminal Floating Nullor. International Journal of Engineering & Technology, [S. l.], v. 7, n. 4.41, p. 192–198, 2018. DOI: 10.14419/ijet.v7i4.41.24526. Disponível em: https://sciencepubco.com/index.php/ijet/article/view/24526.. Acesso em: 22 dec. 2024.