APA Style

Wardiman, A. et al (2008). English in focus: for grade IX Junior High School (SMP/MTs) (Ed. 1). Jakarta: Pusat Perbukuan, Departemen Pendidikan Nasional.

MLA Style

Wardiman, Artono. et al. "English in focus: for grade IX Junior High School (SMP/MTs)". Ed. 1 Jakarta: Pusat Perbukuan, Departemen Pendidikan Nasional, 2008. Buku SMP Athalia.