Huxley, Aldous, author
Bantam, 1958
Buku Teks
Stevenson, Edward J., author
Noyes Data Corporation, 1977
Buku Teks
Halida Nufaisa, author
Universitas Indonesia, 2015
UI - Skripsi (Membership)
Ginting, Pius, author
Publish What You Pay (PWYP) Indonesia, 2015
Buku Teks
edited by Fathi Habashi
Wiley-Vch, 1997
Buku Referensi