Artikel Jurnal
Low, Nicholas
Routledge, 1998
Buku Teks
Hara Tamiki, author
Nakanishi Printing Company;Nakanishi Printing Company, 2019
Artikel Jurnal
Harsiti, author
Program Pascasarjana Universitas Indonesia, 1992
UI - Tesis (Membership)
McNaughton, S. J., author
Gadjah Mada University Press, 1990
Buku Teks