Gaya APA
Zakky, A.
(2015).
Seri Kalimat Thoyyibah I Can Say Laa Ilaaha Illallaah
.
Jakarta:
Garis Bintang Studio.
Gaya MLA
Zakky, Ahmad.
"Seri Kalimat Thoyyibah I Can Say Laa Ilaaha Illallaah".
Jakarta:
Garis Bintang Studio,
2015.
cet.1.