Gaya APA

Agung, I, G, N., Putri, R, S, D, F, R, Y. (2008). Smile: Smart Move In Learning English For Elementary School 1 . Jakarta: Erlangga.

Gaya MLA

Agung, I, Gusti, Ngurah., Putri, Ratna, Setyowati, Dan, Fidelia, Ratri, Yojani. "Smile: Smart Move In Learning English For Elementary School 1". Jakarta: Erlangga, 2008. Text.