P. F. Collier & Son Corporation, 1917
Buku Referensi
Erlina Budiastuti, author
1989
UI - Skripsi (Membership)
Wood, James, author
Farrar, Straus and Giroux, 2008
Buku Teks
Keller, Gottfried
Atlantis Verlag AG, 1965
Buku Teks
Elita Nuraeny, author
Fakultas Teknik Universitas Indonesia, 2012
UI - Skripsi (Open)