J. Ushie, Ogri, Maysam F. Abbod, and Julie C. Ogbulezie. “The Use of Genetic Programming to Evolve Passive Filter Circuits”. International Journal of Engineering and Technology Innovation 7, no. 4 (September 19, 2017): 255-268. Accessed April 23, 2021. https://ojs.imeti.org/index.php/IJETI/article/view/1198.