APA Style

AGUSTIN, R., HESTUTI, E. (2015). LETS UNDERSTAND ENGLISH (3rd edt). SURAKARTA: ERA PUSTAKA UTAMA.

MLA Style

AGUSTIN, RENI., HESTUTI, ENI. "LETS UNDERSTAND ENGLISH". 3rd edt SURAKARTA: ERA PUSTAKA UTAMA, 2015. Text.