Gaya APA
Firdaus, Y, S. ().
Keajaiban Shalat Istikharah; The Miracle of Istikharah Prayer (1).
Jakarta:
Bintang Indonesia.
Gaya MLA
Firdaus, Yeni, S.
"Keajaiban Shalat Istikharah; The Miracle of Istikharah Prayer".
1
Jakarta:
Bintang Indonesia,
.
Text.