Gaya APA
, ., Machfoedz, M. (1997).
English for students of business the new performance .
Yogyakarta:
Yogyakarta: UPP AMP YKPN, 1997.
Gaya MLA
, ., Machfoedz, Mahmud.
"English for students of business the new performance".
Yogyakarta:
Yogyakarta: UPP AMP YKPN, 1997,
1997.
.