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.
Buku Teknik Industri.