Gaya APA

hidajati, A., khiaratullah, A. (2011). Malaikat-malaikat Penolong (CET. 1). YOGYAKARTA: diva press.

Gaya MLA

hidajati, Arini., khiaratullah, Abdulkarim. "Malaikat-malaikat Penolong". CET. 1 YOGYAKARTA: diva press, 2011. Text.