Gaya APA
Qardhawi, Y, E.
(1990).
Dimana Kerusakan Umat Islam
(
cet. 1)
.
Jakarta_:
Gema Insani Publishing.
Gaya MLA
Qardhawi, Yusuf, El.
"Dimana Kerusakan Umat Islam".
cet. 1
Jakarta_:
Gema Insani Publishing,
1990.
Buku Teks.