Gaya APA
Abdullah, A, M, S, B.
(2013).
Jejak Khulafaur Rasyidin, Abu Bakar Ash Shiddiq
.
Jakarta:
Almahira.
Gaya MLA
Abdullah, AL, MAGHLOUTH,, Sami, Bin.
"Jejak Khulafaur Rasyidin, Abu Bakar Ash Shiddiq".
Jakarta:
Almahira,
2013.
Printed Book.