Davies, W.H.
London Jonathan Cape 1927
Buku Teks
Mosteri, Moel
Warner Books, 1976
Buku Teks
Foxley, Eric, author
Addison-Wesley, 1985
Buku Teks
Yapp, R.H, author
University Press, 1927
Buku Teks
Raya Jayawati Ratnawilis Amanah Notonegoro, author
2000
Artikel Jurnal