Gaya APA

M.Pd, D, S, R. (2012). Speaking English Is Easy (Cet 1). Yogyakarta: Pustaka Widyatama.

Gaya MLA

M.Pd, Drs., Slamet, Riyanto,. "Speaking English Is Easy". Cet 1 Yogyakarta: Pustaka Widyatama, 2012. Text.