Perpustakaan Nasional RI, 1999
Buku Referensi
Muhammad Mardal, author
Fakultas Teknik Universitas Indonesia, 2008
UI - Skripsi (Open)
HAKI, 2004
Buku Teks
Bowen, Elizabeth, 1899-1973, author
Penguin Books, 1928
Buku Teks
Budi Susetyo, author
1996
UI - Tesis (Membership)