Gaya APA
GUSWAI, C, F. (2007).
HOW TO OPERATE YOUR STORE EFFECTIVELY YET EFFICIENTLY .
Jakarta:
PT Elex Media Komputindo.
Gaya MLA
GUSWAI, Christian, F..
"HOW TO OPERATE YOUR STORE EFFECTIVELY YET EFFICIENTLY".
Jakarta:
PT Elex Media Komputindo,
2007.
Text.