Jarvinen, Margaretha
Of vice and women shades of prostitution
Scandinavian University Press, 1993
 Buku Teks SO
Tirtawening, supervisor
Batik: a play of light and shades
Gaya Favorit Press, 2009
 Buku Referensi
Ketton-Cremer, Robert Wyndham, 1906-
Thomas Gray
Longmans, Green, 1958
 Buku Teks SO
Ketton-Cremer, Robert Wyndham, 1906-
Thomas Gray
British Council by Longmans, Green, 1958
 Buku Teks SO
Grisham, John
Gray mountain
Random House Audio, 2014
 Buku Teks SO