Wai, M. P. P., Suwanjan, P., Jaikla, W., & Chaichana, A. (2021). Electronically and Orthogonally Tunable SITO Voltage-Mode Multifunction Biquad Filter Using LT1228s. Elektronika Ir Elektrotechnika, 27(5), 11-17. https://doi.org/10.5755/j02.eie.28949