Gaya APA

S.Pd, Y, Y., S.Pd, S, W. (2015). Happy With English (Cet. 3). Surakarta: PT Era Pustaka Utama.

Gaya MLA

S.Pd, Yuyun, Yuningsih., S.Pd, Susilo, Wardani. "Happy With English". Cet. 3 Surakarta: PT Era Pustaka Utama, 2015. Text.