Wilding, Michael, author
Penguin Books, 1985
Buku Teks
edited by Cecil Hadgraft
Oxford University Press, 1986
Buku Teks
Artikel Jurnal
oleh Gunanto Surjono [and others]
B2P3KS Press, 2009
Buku Teks
Muchtar A.F., author
Bhuana Ilmu Populer, 2009
Buku Teks