Gaya APA
INFO ASKES edisi May-09. Upgrade Kompetisi Duta Askes
.
(2009).
Jakarta:
PT Askes Persero.
Gaya MLA
INFO ASKES edisi May-09. Upgrade Kompetisi Duta Askes
.
May-09.
Jakarta:
PT Askes Persero,
2009.
Printed.