[publisher not identified], [date of publication not identified]
Buku Teks
Ganijanti Aby Sarojo, author
FIPIA UI, 1981
Buku Teks
Hutauruk, T.S., author
Erlangga, 1991
Buku Teks
Ulil Ulya, author
Fakultas Teknik Universitas Indonesia, 2011
UI - Skripsi (Open)
Artikel Jurnal