Ferguson, Wallace K., author
Sir Isaac Pitman & Sons, [date of publication not identified]
Buku Teks
editor by,Gönül Bozoglu, Christopher Whitehead, Susannah Eckersley, Mads Daugbjerg
Routledge, 2019
Buku Teks
editors, A. Barav, D.A. Wyatt, ; asisten editor, Joan Wyatt
Clarendon Press, 1989
Buku Referensi
Yudha Akbar, author
2007
Artikel Jurnal
Mario Josko, author
2008
UI - Tesis (Open)