Gaya APA
al-Qarni, D, ".
(2004).
La Tahzan, Jangan Bersedih !
.
Jakarta:
Qisthi Press.
Gaya MLA
al-Qarni, Dr., "Aidh.
"La Tahzan, Jangan Bersedih !".
Jakarta:
Qisthi Press,
2004.
Text.