Gaya APA
Tripp, P, D. (2008).
Peer Pressure: Recognizing the Warning Signs and Giving New Directions: CCEF .
Greensboro:
New Growth Press.
Gaya MLA
Tripp, Paul, David.
"Peer Pressure: Recognizing the Warning Signs and Giving New Directions: CCEF".
Greensboro:
New Growth Press,
2008.
Karya Cetak.