Gaya APA
Zam, E, Z.
(2004).
10 Program MP3 Player Paling Populer
.
Yogyakarta:
Gava Media.
Gaya MLA
Zam, Efvy, Zamidra.
"10 Program MP3 Player Paling Populer".
Yogyakarta:
Gava Media,
2004.
Text.