Gaya APA
Subroto, B.
(2011).
Pemasaran Industri: Business To Business Marketing
(
Ed. 1)
.
Yogyakarta:
ANDI.
Gaya MLA
Subroto, Budiarto.
"Pemasaran Industri: Business To Business Marketing".
Ed. 1
Yogyakarta:
ANDI,
2011.
Teknik Mesin.