Gaya APA
SIGIT,Soehardi, .
(1992).
Pemasaran Praktis (PRACTICAL MARKETING)
(
3 Cet.1)
.
Yogyakarta, DIY:
BPFE- Yogyakarta.
Gaya MLA
SIGIT,Soehardi, .
"Pemasaran Praktis (PRACTICAL MARKETING)".
3 Cet.1
Yogyakarta, DIY:
BPFE- Yogyakarta,
1992.
Text.