Gaya APA
MUCKIAN, M.
(2006).
Buku Pintar Surat-Surat Bisnis
(
1st ed)
.
Yogyakarta:
Think.
Gaya MLA
MUCKIAN, Michael.
"Buku Pintar Surat-Surat Bisnis".
1st ed
Yogyakarta:
Think,
2006.
Printed.