APA Style

Bates, S. (2011). Oxford Preparation Course for the TOEFL iBT Exam: A Skill-Based Communicative Approach . Oxford: Oxford University Press.

MLA Style

Bates, Susan. "Oxford Preparation Course for the TOEFL iBT Exam: A Skill-Based Communicative Approach". Oxford: Oxford University Press, 2011. Perpustakaan KALBIS.