LERTKONSARN , S. A Fully-Balanced Current-Tunable Gm-C Low Pass Filter: doi: 10.14456/mijet.2021.12. Engineering Access, Mahasakham, Thailand, v. 7, n. 1, p. 85–88, 2021. Disponível em: https://ph02.tci-thaijo.org/index.php/mijet/article/view/10.14456.mijet.2021.12. Acesso em: 27 aug. 2026.