Roy, S., Paul, T. K., Maiti, S., & Pal, R. R. (2021). Voltage Differencing Current Conveyor Based Voltage-Mode and Current-Mode Universal Biquad Filters with Electronic Tuning Facility. International Journal of Engineering and Technology Innovation, 11(2), 146-160. https://doi.org/10.46604/ijeti.2021.6821