Williams, Arthur Bernard, 1940-
Electronic filter design handbook
McGraw-Hill, 1995
 Buku Referensi
Johnson, David E.
Introduction to filter theory
Prentice-Hall, 1976
 Buku Teks
Lambang Wisnusasongko
Evaluasi kestabilan filter butterworth orde dua dengan menggunakan bode plot
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 1992
 UI - Skripsi Membership
Lenk, John D.
Simplified design of filter circuits
Newnes, 1998
 Buku Teks
Lam, Harry Y-F.
Analog and digital filters : design and realization / Harry Y-F Lam
Prentice-Hall, 1979
 Buku Teks