Gaya APA

al-Qarni, \., al-Qarni, \. (). La Tahzan: Jangan Bersedih (Cet.4). Jakarta: Qisthi Press.

Gaya MLA

al-Qarni, \'Aidh., al-Qarni, \'Aidh. "La Tahzan: Jangan Bersedih". Cet.4 Jakarta: Qisthi Press, . Text.