Doddy, A. et al.(2008).Developing English Competencies for Grade X Senior High School (SMA/MA) (Cet.1).Jakarta:Pusat Perbukuan Departemen Pendidikan Nasional.
Gaya MLA
Doddy, Achmad. et al."Developing English Competencies for Grade X Senior High School (SMA/MA)".Cet.1Jakarta:Pusat Perbukuan Departemen Pendidikan Nasional,2008.Text.