Gaya APA

Effendi, A, D, A, S. (2008). Developing english competencies : for Senior High school (SMA/MA) 1 grade X . : Pusat Perbukuan, Departemen Pendidikan Nasional.

Gaya MLA

Effendi, Achmad, Doddy,, Ahmad, Sugeng,. "Developing english competencies : for Senior High school (SMA/MA) 1 grade X". : Pusat Perbukuan, Departemen Pendidikan Nasional, 2008. Text.