Gaya APA
Laut, D, -, D, P. (2010).
Who needs it? Personal protective equipment .
:
DJP - Dirjend Perhubungan Laut.
Gaya MLA
Laut, DJP, -, Dirjend, Perhubungan.
"Who needs it? Personal protective equipment".
:
DJP - Dirjend Perhubungan Laut,
2010.
CD-ROM.