Gaya APA
Subroto, B.
(2011).
Pemasaran Industri : Business to Business Marketing
(
1)
.
Yogyakarta:
Penerbit Andi.
Gaya MLA
Subroto, Budiarto.
"Pemasaran Industri : Business to Business Marketing".
1
Yogyakarta:
Penerbit Andi,
2011.
Text.