Gaya APA

Djusma, A, W, M, B, J, D, M, S. (2008). English in focus 2 : for grade VIII Junior High School (SMP/MTs) . Jakarta: Departemen Pendidikan Nasional.

Gaya MLA

Djusma, Artono, Wardiman,, Masduki, B., Jahur,, Dan, M., Sukirman. "English in focus 2 : for grade VIII Junior High School (SMP/MTs)". Jakarta: Departemen Pendidikan Nasional, 2008. Electronic Resource.