Tarunkumar, Huirem, Ashish Ranjan, and Nonglen Meitei Pheiroijam. “First Order and Second Order Universal Filter Using Four Terminal Floating Nullor”. International Journal of Engineering & Technology 7, no. 4.41 (December 19, 2018): 192–198. Accessed December 22, 2024. https://sciencepubco.com/index.php/ijet/article/view/24526.