Horne, Donald, author
Penguin Books, 1968
Buku Teks
Dinda Supradjanti Sugiarto, author
Fakultas Psikologi Universitas Indonesia, 1981
UI - Skripsi (Membership)
Lee, Hee Jae, author
Gelnongerimbat, 2008
Buku Teks
Jakarta : Handel Maatschappij
Majalah, Jurnal, Buletin
BBC Worldwide Limited, 2004
Multimedia