APA Style

Wardiman, A. et al (2008). English in focus 3: For grade IX Junior High School (SMP/MTs) . : Pusat Perbukuan Departemen Pendidikan Nasional.

MLA Style

Wardiman, Artono. et al. "English in focus 3: For grade IX Junior High School (SMP/MTs)". : Pusat Perbukuan Departemen Pendidikan Nasional, 2008. Text.