Gaya APA
Riches, S.
(2009).
Keenan and Riches’ business law
(
9th ed)
.
Inggris:
PEARSON EDUCATION LIMITED.
Gaya MLA
Riches, Sarah.
"Keenan and Riches’ business law".
9th ed
Inggris:
PEARSON EDUCATION LIMITED,
2009.
Electronic Resource.