Gaya APA
Riyanto, .
(1998).
Pesan-Pesan Spiritual ibnul Qayyim
.
Jakarta:
Gema Insani Press.
Gaya MLA
Riyanto, .
"Pesan-Pesan Spiritual ibnul Qayyim".
Jakarta:
Gema Insani Press,
1998.
Text.