Gaya APA

M, Z, A, P., II.Purindraswari, I, . (2018). Developing English Skill : Practice Kakes Perfect (Cet ke 1). Yogyakarta: Andi.

Gaya MLA

M, Zainul, Arifin, PWD,., II.Purindraswari, I.j, . "Developing English Skill : Practice Kakes Perfect". Cet ke 1 Yogyakarta: Andi, 2018. Text.