Gaya APA

dkk, I, W. (2013). Be Smart in English 1 For Grade X of Senior High Schools (NULL). solo: PT. Wangsa Jatra Lestari.

Gaya MLA

dkk, Ira, Wijayanti,. "Be Smart in English 1 For Grade X of Senior High Schools". NULL solo: PT. Wangsa Jatra Lestari, 2013. Text.