Gaya APA
Salamulloh, M, A., Rahman, F.
(2008).
Akhlak Hubungan Horizontal
.
Yogyakarta:
Pustaka Insan Madani.
Gaya MLA
Salamulloh, M., Alaika., Rahman, Fathur.
"Akhlak Hubungan Horizontal".
Yogyakarta:
Pustaka Insan Madani,
2008.
Book.