Gaya APA
SUGIYONO, A. (2005).
Quality As An Investment : Roq and Its Indicators .
Semarang:
Pusat Kaj. Teknologi Industri Sultan Agung.
Gaya MLA
SUGIYONO, Andre.
"Quality As An Investment : Roq and Its Indicators".
Semarang:
Pusat Kaj. Teknologi Industri Sultan Agung,
2005.
Artikel.