Gaya APA
Machfoedz, M. (2003).
Let's talk business : business concepts for english practice / Mahmud Machfoedz (cet. 1).
Yogyakarta:
BPFE.
Gaya MLA
Machfoedz, Mahmud.
"Let's talk business : business concepts for english practice / Mahmud Machfoedz".
cet. 1
Yogyakarta:
BPFE,
2003.
Buku.