Gaya APA
Khiaratullah, A.
(2011).
Malaikat-Malaikat Penolong
.
Yogyakarta:
Diva Press.
Gaya MLA
Khiaratullah, Abdulkarim.
"Malaikat-Malaikat Penolong".
Yogyakarta:
Diva Press,
2011.
Text.