-. (1998). Essential grammar in use: A self-study reference and practice book for elementary students of english with answer (edisi 2.). Great Britain: Cambridge University Press.
Chicago Style Citation-. Essential Grammar in Use: A Self-study Reference and Practice Book for Elementary Students of English With Answer. edisi 2. Great Britain: Cambridge University Press, 1998.
MLA Citation-. Essential Grammar in Use: A Self-study Reference and Practice Book for Elementary Students of English With Answer. edisi 2. Great Britain: Cambridge University Press, 1998.
Warning: These citations may not always be 100% accurate.