Gaya APA
Dugan, R., C. (2003).
Electrical power systems quality (ed. ii).
new york:
Akademi Komunitas Perkebunan Yogyakarta.
Gaya MLA
Dugan, R., C..
Electrical power systems quality.
ed. ii
new york:
Akademi Komunitas Perkebunan Yogyakarta,
2003.
Text.