Baum, Vicki, author
Perplus, 1999
Buku Teks
Armstrong, Karen, author
Serambi , 2001
Buku Referensi
Widanti Destriani, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2009
UI - Skripsi (Open)
Yusita Partisandy, author
Fakultas Teknik Universitas Indonesia, 1999
UI - Skripsi (Membership)
Kellerman, Faye, author
Headline Feature, 1989
Buku Teks