Gaya APA
ROYAN, F, M.
(2010).
"Creating effective sales force" :
(
ed. 2)
.
Yogyakarta:
Andi.
Gaya MLA
ROYAN, Frans, M..
""Creating effective sales force" :".
ed. 2
Yogyakarta:
Andi,
2010.
Buku.