Casaleiro, João Carlos Ferreira de Almeida
Quadrature RC−Oscillators: The van der Pol approach
Springer Cham, 2019
 eBooks
Muhammad Farhan Husain
Kebijakan dan Program/Kegiatan Sektor Energi di Daerah dalam Rangka Mendukung Pencapaian Net Zero Emission
UI Publishing, 2024
 Buku Teks SO
Siregar, Leonardus
Pengukuran tahanan pembumian peralatan rumah tangga di kota medan / Leonardus Siregar
Universitas HKBP Nonmensen, 2017
 Artikel Jurnal
Cogdell, J.R.
Foundations of electrical engineering
Prentice-Hall, 1990
 Buku Teks
Dargan, C.R.
Elementary electrical engineering : for mechanical, civil and other nonelectrical diploma students
Tata McGraw-Hill , 1994
 Buku Teks