Gaya APA
Maulana, I.
(2014).
Umar Bin Khattab r.a
.
Yogyakarta:
IDEA WORLD KIDZ.
Gaya MLA
Maulana, Ilham.
"Umar Bin Khattab r.a".
Yogyakarta:
IDEA WORLD KIDZ,
2014.
Text.