Gaya APA
Ridha, A., Firdaus, I.
(2005).
Remaja Tanpa Masalah
.
Jakarta:
Qisthi Press.
Gaya MLA
Ridha, Akram., Firdaus, Iman.
"Remaja Tanpa Masalah".
Jakarta:
Qisthi Press,
2005.
Text.