Gaya APA
ZAM, E, Z.
(2009).
Panduan praktis memblokir situs porno
.
Yogyakarta:
Gave media.
Gaya MLA
ZAM, Efvy, Zamidra.
"Panduan praktis memblokir situs porno".
Yogyakarta:
Gave media,
2009.
Printed Book.