Gaya APA
ARDIKA, Y., VARIUS, N.
(2019).
Umar bin khattab : ksatria pemberani
.
Surakarta:
Ziyad Books.
Gaya MLA
ARDIKA, Yuli., VARIUS, Novel.
"Umar bin khattab : ksatria pemberani".
Surakarta:
Ziyad Books,
2019.
Text.