Gaya APA

Baehaqi, I., kamdani, . (2011). Practical English grammar (Cet.3). Yogyakarta: Pustaka pelajar offset.

Gaya MLA

Baehaqi, Imam., kamdani, . "Practical English grammar". Cet.3 Yogyakarta: Pustaka pelajar offset, 2011. Text.