Gaya APA
Baier, Martin. (1985).
elements of direct marketing .
Singapore:
McGraw-Hill.
Gaya Chicago
Baier, Martin.
elements of direct marketing.
Singapore:
McGraw-Hill,
1985.
Buku Teks.
Gaya MLA
Baier, Martin.
elements of direct marketing.
Singapore:
McGraw-Hill,
1985.
Buku Teks.
Gaya Turabian
Baier, Martin.
elements of direct marketing.
Singapore:
McGraw-Hill,
1985.
Buku Teks.