Gaya APA
Rokes, Beverly. (2000).
Customer service : business 2000 .
Australia:
South Western.
Gaya Chicago
Rokes, Beverly.
Customer service : business 2000.
Australia:
South Western,
2000.
Buku.
Gaya MLA
Rokes, Beverly.
Customer service : business 2000.
Australia:
South Western,
2000.
Buku.
Gaya Turabian
Rokes, Beverly.
Customer service : business 2000.
Australia:
South Western,
2000.
Buku.