Sujiwa, Akbar, and Billy Sopater Maniani. “The Effect of Inaccurate Electronic Component Values on The Output Frequency Characteristics of Fourth Order Butterworth Type Low-Pass Filter Circuits”. Faraday: Journal of Fundamental Physics, Research, and Applied Science 1, no. 1 (January 31, 2025): 1–8. Accessed May 10, 2026. https://faraday.upnjatim.ac.id/index.php/faraday/article/view/4.