Gaya APA

Baehaqi, I., Kamdani, . (2014). Practical english grammar (Cet. 4). Yogyakarta: Pustaka Pelajar.

Gaya MLA

Baehaqi, Imam., Kamdani, . "Practical english grammar". Cet. 4 Yogyakarta: Pustaka Pelajar, 2014. Text.