Gaya APA
Muckian, M.
(2008).
Buku Pintar Surat-Surat Bisnis
.
Jogjakarta:
Think Fresh.
Gaya MLA
Muckian, Michael.
"Buku Pintar Surat-Surat Bisnis".
Jogjakarta:
Think Fresh,
2008.
Buku Teks.