Williams, Arthur Bernard, 1940-
Electronic filter design handbook
McGraw-Hill, 1981
 Buku Referensi
Lambang Wisnusasongko
Evaluasi kestabilan filter butterworth orde dua dengan menggunakan bode plot
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 1992
 UI - Skripsi Membership
Moschytz, George S.
Analog circuit theory and filter design in the digital world with an introduction to the morphological method for creative solutions and design
Springer Nature, 2019
 eBooks
Lenk, John D.
Simplified design of filter circuits
Newnes, 1998
 Buku Teks SO
Sedra, Adel S.
Filter theory and design : actice and passive
Pitman, , 1978
 Buku Teks