Gaya APA
LUTFI, . (2008).
New Evidence on the information of bond downgrade announcement in the stock exhange .
Surabaya:
PPPM STIE Perbanas Surabaya.
Gaya MLA
LUTFI, .
"New Evidence on the information of bond downgrade announcement in the stock exhange".
Surabaya:
PPPM STIE Perbanas Surabaya,
2008.
Artikel.