Gaya APA
Philips, D. (2000).
Longman preparation course for the toefl test skills and strategies (Ed.2).
Jakarta:
Prenhallindo.
Gaya MLA
Philips, Deborah.
"Longman preparation course for the toefl test skills and strategies".
Ed.2
Jakarta:
Prenhallindo,
2000.
Monograf.