Usman Chatib Warsa, author
2006
Artikel Jurnal
Harvard University, 1971
Buku Teks
editor, John Prest
Oxford University Press, 1993
Buku Referensi
Okinawa :The Faculty of Letters Kobe University
Majalah, Jurnal, Buletin
Japan : Tentri University Sankokan Museum
Majalah, Jurnal, Buletin