Noordervliet, Nelleke
Pelican bay
Uitgeverij Augustus, 2002
 Buku Teks
Ayer, Alfred Jules, 1910-1989
A pelican book: Language, truth and logic
Penguin Books, 1980
 Buku Teks SO
Cameron, Edward A.
Brief trigonometry
Reynal & Hitchock, 1941
 Buku Teks SO
Gilmore, Gene
Editing in brief
Body & Fraser Publishing Company, 1997
 Buku Teks SO
Kafka, Franz, 1883-1924
Brief 1902-1924
Frankfurt S Fischer 1958
 Buku Teks