Ajat, author
Surat kabar harian (Dagblad) Express, [date of publication not identified]
Buku Klasik
Tutu T.W. Surowiyono
Jakarta: Sinar Harapan, 1982
Buku Teks
Universitas Indonesia, 1999
UI - Skripsi (Membership)
DPMB, 1981
Buku Teks
Dudi Saptara, author
Fakultas Teknik Universitas Indonesia, 1990
UI - Skripsi (Membership)