Concise Oxford English dictionary
edited by Catherine Soanes and Angus Stevenson
Oxford University Press, 2006
 Buku Referensi
Nisa Andini
Perwujudan konsep kewaktuan bahasa Indonesia dalam buku cerita dwibahasa Spiderman Saves the day/Spiderman menyelamatkan dunia
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2008
 UI - Skripsi (Open)
The oxford dictionary of current english
edited by Della Thompson
Oxford University Press, 1996
 Buku Referensi
Allan, Dave
Oxford placement test 1
Oxford University Press, 1992
 Buku Teks
Grace Josephine Tiwon Wiradisastra
English for academic purposes : PDPT University of Indonesia
UI-Press, 2006
 Buku Teks