Gaya APA

Ahmad, Z. (2018). I Can Say Laa Ilaaha Illallaah (Cet. 4). Jakarta Timur: Zikrul Hakim.

Gaya MLA

Ahmad, Zakky. "I Can Say Laa Ilaaha Illallaah". Cet. 4 Jakarta Timur: Zikrul Hakim, 2018. Text.