Sampe J, Faseehuddin M, Hamid Md Ali S. A new versatile active element and its application in design of minimum component all pass filters. IJET [Internet]. 2018 Nov. 15 [cited 2024 Apr. 29];7(4):4481-8. Available from: https://www.sciencepubco.com/index.php/ijet/article/view/18995