Harper Collins, 1989
Buku Teks
Knappett, Carl, author
Oxford University Press, 2014
Buku Teks
Charlotta Hillerdal, Johannes Siapkas, editors
Routledge, 2015
Buku Teks
Cambridge University Press, 1984
eBooks
Ahmad Izzah Fadhilah, author
Fakultas Teknik Universitas Indonesia, 2022
UI - Skripsi (Membership)