Gaya APA
Boen, B.
(2012).
Young on Top New Edition : 35 Kunci Sukses di Usia Muda
.
Yogyakarta:
B First.
Gaya MLA
Boen, Billy.
"Young on Top New Edition : 35 Kunci Sukses di Usia Muda".
Yogyakarta:
B First,
2012.
Text.