MUTALIB, M. A.; ZAKARIA, Z.; SHAIRI, N. A. High Selectivity Microstrip Bandpass Filter Integrate with Ring Resonator Bandstop Filter. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), [S. l.], v. 9, n. 2-13, p. 39–42, 2017. Disponível em: https://jtec.utem.edu.my/jtec/article/view/2563. Acesso em: 24 apr. 2024.