Gaya APA
Natsir, M, E., Widayanti, E.
(2010).
Ashabul kahfi
.
Yogyakarta:
Diva Press.
Gaya MLA
Natsir, Muhammad, El., Widayanti, Elis.
"Ashabul kahfi".
Yogyakarta:
Diva Press,
2010.
Text.