Gaya APA
Ramdhan, N.
(2006).
Rukun iman
(
Ensiklopedi Anak Muslim Vol. 4)
.
Jakarta:
NCR Production.
Gaya MLA
Ramdhan, Nurcholiq.
"Rukun iman".
Ensiklopedi Anak Muslim Vol. 4
Jakarta:
NCR Production,
2006.
Digital Versatile Disc.