Gaya APA
Al-Munajjid, M, S., Barzani, A.
(1998).
33 Kiat Khusyu
.
Jakarta:
Gema Insani Press.
Gaya MLA
Al-Munajjid, Muhammad, Shaleh., Barzani, Abu.
"33 Kiat Khusyu".
Jakarta:
Gema Insani Press,
1998.
Text Book.